{"title":"Unicel","description":"\u003cp\u003eUnicel pool equipment and replacement parts at Active Pool Supply.\u003c\/p\u003e","products":[{"product_id":"sta-rite-s7d75-full-filter-grid-set-11-grids","title":"Filbur Sta-Rite S7D75 Full Filter Grid Set (11 Grids)","description":"\u003cp\u003eThe Filbur FS-3037 is a full eleven grid replacement set for the Sta-Rite System 3 S7D75 DE filter. It is grids only: the manifold, retainer and hardware from your existing element stay in service, and the new grids go on in place of the old ones.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThree offset port grids, one at 12-7\/16 in. and two at 13-13\/16 in., and eight center port grids, two each at 9-11\/16, 12-7\/16, 15-3\/16 and 16-1\/2 in. Every grid is 18 in. long. Together they replace the complete grid pack in the S7D75 tank.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the filter is the S7D75. The larger System 3 S8D110 takes a thirteen grid set instead. While the tank is apart it is worth checking the 21 in. tank o-ring and replacing it if it has flattened or cracked.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48624884089044,"sku":"UNI-051-3037","price":253.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8220d387-d4e7-40d8-a0cf-4184331eeb8a.jpg?v=1788649564"},{"product_id":"cartridge-145-sqft","title":"Unicel Filter Cartridge Replacement, 145 Sq Ft for Jandy CL580","description":"\u003cp\u003eThe Unicel C-7482 is a 145 sq ft replacement cartridge for the Jandy CL580 cartridge filter. It measures 7 in. in outside diameter by 33 in. long and is open at both ends with a 3 in. inside diameter top and bottom.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatching it up\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck the old cartridge against those dimensions before ordering: 7 in. across, 33 in. long, open ends with a 3 in. opening. This listing is one cartridge; a 4 pack of the same element is listed separately for a complete change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the most from it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinsing the pleats and using a cartridge cleaner between changes keeps the element working. When cleaning no longer brings the filter pressure back down, it is time for a new one.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48624884318420,"sku":"UNI-60-5721","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_2d62b972-5485-4e05-bbad-f8f73e2f7564.jpg?v=1788649611"},{"product_id":"clean-clear-plus-ccp420-4-pack","title":"Unicel Replacement Cartridge Filters for Clean \u0026 Clear Plus CCP420 4-Pack","description":"\u003cp\u003eThe Unicel C-7471-4 is a four pack of replacement cartridges for the Pentair Clean \u0026amp; Clear Plus 420 cartridge filter. The CCP420 runs four cartridges, so one pack refreshes the entire filter and restores the full 420 sq ft of filter area.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach cartridge measures 7 in. in diameter by 26-1\/16 in. long, with open ends and a 3 in. inside diameter at both top and bottom. Filter area is 105 sq ft per cartridge. The application is Pac-Fab\/Pentair and Waterway Plastics, for the Clean \u0026amp; Clear Plus 420 built after 11\/98.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe single cartridge is Unicel C-7471. It replaces Pentair OEM numbers 817-0106 and R178584 and crosses to Filbur FC-1977 and Pleatco PCC105. If the tank o-ring or the bottom manifold also needs attention, those are listed separately.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48624965812436,"sku":"UNI-051-9505","price":348.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_0a1d93aa-90ad-4a2e-a7de-7050c66ef53c.jpg?v=1788656796"},{"product_id":"filter-cartridge-4-pack","title":"Unicel Filter Cartridge 4-Pack for Hayward SwimClear C4020\/4025\/4030","description":"\u003cp\u003eThis is a four pack of Unicel C-7488 cartridges for the Hayward SwimClear C4020, C4025 and C4030 cartridge filters. Each element carries 106 sq ft of filter area and replaces the Hayward CX880XRE.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy four\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe SwimClear tank holds four cartridges standing side by side around the manifold. They see the same water and load at the same rate, so a set is the sensible unit of replacement. Changing one and leaving three tired ones behind puts uneven flow through the tank and shortens the life of the new element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe same cartridge is listed as Unicel C-7488, as FC1226 and as PA106. If you have been buying by one of those numbers, this is the same element in a set of four.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are due when a fresh cleaning no longer brings the filter pressure back down, when the pleats stay grey after soaking, or when the fabric has started to tear at the ends. At that point the element is passing dirt no matter how clean it looks.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48625586340052,"sku":"UNI-051-9512","price":311.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_120f9246-ae83-41d6-83e3-42b769d1acf4.jpg?v=1788688992"},{"product_id":"cartridge-80-sq-ft-for-ccp320","title":"Unicel Cartridge 320 sq ft for Clean and Clear Plus CCP320","description":"\u003cp\u003eUnicel C-7470-4 is the replacement cartridge set for the Pentair Clean and Clear Plus CCP320. The filter runs four 80 sq ft elements, which is where its 320 sq ft rating comes from, and this part number supplies the full set of four.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it replaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is the Unicel equivalent of the Pentair factory cartridge R173573, so it drops into a CCP320 in place of the original elements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach cartridge measures 7 in. in diameter and 20 in. long. Both ends are open with a 3 in. inside diameter, matching the manifold the CCP320 seats them on.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChange the set together\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges load evenly inside the tank, so a single new element alongside three tired ones takes more than its share of the dirt and wears out early. Replacing all four at once keeps pressure, flow and cleaning intervals predictable.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48625746346196,"sku":"UNI-051-9504","price":291.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1ec9ba28-9c0d-4eb7-9835-784e7937e250.jpg?v=1788690912"},{"product_id":"cartridge-filter-set-130sqft-520","title":"Unicel Cartridge Filter Set 130 Sq Ft 520","description":"\u003cp\u003eThe Unicel C-7472-4 is the four cartridge replacement set for the Clean \u0026amp; Clear Plus 520. Each element runs 7 in. across the outside diameter and 32-1\/16 in. long, with an open top and an open bottom of 3 in. inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel lists this set for the Clean \u0026amp; Clear Plus 520 made after 11\/98, under Pac-Fab and Pentair as well as Waterway Plastics. Check the dimensions against the elements you pull out before ordering, since several large cartridge tanks look alike from the outside and only the cartridge length tells them apart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChanging the set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAll four cartridges in a tank take the same load and reach the end of their life together. When filter pressure climbs sooner after each cleaning, or the pleats stay grey after a soak, the set is done. Replacing all four keeps flow even across the rack, which is what a single new element among three worn ones cannot do.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48625748869332,"sku":"UNI-051-9506","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_cd47e2d8-97b7-42d3-80d0-309cd93d3c28.jpg?v=1788691623"},{"product_id":"cartridge-filter-4-pack-jandy-cl340","title":"Unicel Cartridge Filter, 4 Pack, Jandy CL340","description":"\u003cp\u003eUnicel C-7459-4 is a four pack of replacement filter cartridges for the Jandy CL340 and CLV340 cartridge filters. One pack covers a full element change.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a set of four\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe CL340 runs four cartridges around a central manifold, and they share the flow between them. When one is new and three are loaded, the new element takes more than its share and wears early while the tank still runs high on pressure. Changing all four keeps the load even and gives the filter its full clean cycle back.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCleaning buys back most of the flow for a while. The point to replace comes when a proper soak and rinse no longer drops the pressure gauge back near where it read on a clean filter, or when the pleats have gone soft, torn or permanently gray.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48625789894868,"sku":"UNI-051-9500","price":293.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_bf6ae13a-0184-48a3-95eb-d566ecca74db.jpg?v=1788700107"},{"product_id":"18-36-sqft-de-grid-purex","title":"Unicel 18 in. 36 Sq Ft DE Grid","description":"\u003cp\u003eThe Unicel FG-1236 is a vertical DE filter grid rated at 36 sq ft, for Purex DE filters. It measures 10-3\/4 in. by 19-3\/8 in. and belongs to the 18 in. tall grid family, so measure the grid you are replacing before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt covers the Purex 2000 Series stainless DE filters, models SMBW 2024, 2036, 2048, 2060 and 2072 along with the 1018, 1027, 1036, 1045 and 1054 models, and the Purex 4000 Series molded DE filters in SM and SMBW models 4024, 4036 and 4048.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOne grid or the set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis listing is a single grid. Grids tend to fail together, since they share the same age and the same backwash cycles, and DE returning to the pool through the returns is the symptom. If more than one is torn, the complete 36 sq ft grid set is usually the better call.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48625841406164,"sku":"UNI-60-5201","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_9cf6cffb-8dc6-48c7-9b86-b979df45c516.jpg?v=1788701318"},{"product_id":"cartridge-100-sqft","title":"Unicel Cartridge Filter, 100 sq ft, for Pentair Clean and Clear CC100","description":"\u003cp\u003eThe Unicel C-9410 is a 100 square foot replacement filter cartridge for the Pentair Clean and Clear CC100 and the Pentair Predator. It replaces Pentair part R173215 and cross references to the Pleatco PAP100 and the Filbur FC-0686.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge measures 10-1\/16 in. outside diameter by 23-5\/8 in. long. Both end caps are open with a 6 in. inside diameter, which is what seats the element over the manifold at the bottom and under the retainer at the top.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe media\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is built with 3 ounce Reemay 2033 folded into 150 pleats. The folds are formed sharply so the pleats stay separated rather than collapsing against each other, and that spacing is what keeps the full surface area available to the water instead of only the outer faces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReplace the cartridge when cleaning no longer brings the filter pressure back down. At that point the media is loaded rather than the surface, and another soak will not recover it.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48626209521876,"sku":"UNI-60-5485","price":106.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_eed6ccae-9ceb-486e-b2f5-17e14674ae73.jpg?v=1788706092"},{"product_id":"s8d110-full-filter-grid-set-13-grids","title":"Unicel S8D110 Full Filter Grid Set, 13 Grids","description":"\u003cp\u003eThe Unicel FS-3053 is the full replacement grid set for the Sta-Rite System 3 S8D110 DE filter. It contains all thirteen grids the tank takes: three FG-3916, two each of FG-3011, FG-3015 and FG-3016, and four FG-3019.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace the whole set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDE grids are fabric over a frame, and the fabric is what holds the powder that does the filtering. Once the cloth thins, tears at a seam or pulls away from the frame, DE blows straight through into the pool and pressure never settles where it should. Because every grid in a tank has done the same hours, changing one at a time tends to be a series of return trips.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGrids only. The manifold, standpipe, tank o-ring and clamp are separate parts, so inspect them while the tank is open and order anything that looks tired at the same time.\u003c\/p\u003e\u003cp\u003eIf your filter is the smaller System 3 S7D75, it takes an eleven grid set instead of this one.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48626387615956,"sku":"UNI-051-3053","price":357.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_13d8d9dd-48b0-46da-b88d-b4f0875fc798.jpg?v=1788709644"},{"product_id":"cartridge-115-sqft","title":"Unicel C-7468 Filter Cartridge, 115 Sq Ft","description":"\u003cp\u003eThe Unicel C-7468 is a 115 square foot replacement filter cartridge measuring 7 in. outside diameter by 27 in. long. It fits the Jandy CL 460 cartridge filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy filter area matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe square footage rating is the amount of media the water has to pass through. Run a filter with a collapsed or clogged element and the pump works against a restriction all day: pressure climbs, flow at the returns drops, and heaters and cleaners that depend on flow start to complain.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse the pleats out on a regular schedule and soak the element when oils and scale build up. When a full cleaning no longer brings the pressure back to where it started, or the pleats are torn, matted or leaning over, the cartridge is finished and a new one is the fix.\u003c\/p\u003e\u003cp\u003eUnicel builds an 85 square foot and a 145 square foot element for the smaller and larger filters in the same family, so check the size stamped on your old cartridge before ordering.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48626388500692,"sku":"UNI-60-5720","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_6bb6d386-72ce-44ed-89fd-fbc4cf7a5eeb.jpg?v=1788709665"},{"product_id":"24-48-sq-ft-de-grid","title":"Unicel 24 in., 48 Sq. Ft. DE Grid","description":"\u003cp\u003eThe Unicel FG-1248 is a vertical DE filter grid in the Purex style, rated at 48 square feet of filter area. It measures 10-3\/4 in. across by 25-3\/8 in. tall and is listed under the 24 in. grid size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the grid does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGrids stack inside the assembly of a DE filter. Each one is a fabric covered frame, and the diatomaceous earth coat that clings to that fabric is what actually filters the water. When the fabric tears or the frame cracks, DE blows straight through into the pool and the filter stops behaving the way it should.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the size first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGrid sizes vary within a filter family, so measure the grid you are pulling out against the 10-3\/4 in. by 25-3\/8 in. dimensions rather than ordering from the filter model alone. This grid is listed with the Purex 2000 Series stainless DE filters and the Purex 4000 Series molded DE filters.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48626707005652,"sku":"UNI-60-1248","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_dc365eab-52fc-49c9-92a3-83551eec11d7.jpg?v=1788713912"},{"product_id":"60-sq-ft-filter-grid-each-large","title":"Unicel 60 Sq. Ft. Filter Grid, Large, FG-1005","description":"\u003cp\u003eThe Unicel FG-1005 is the large DE filter grid for 60 square foot filters, a 30 in. vertical element. It is sold individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the grid does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA DE filter does not filter with the tank, it filters with the diatomaceous earth held on the grid fabric. The grids are simply the frame and cloth that carry that coat. When the fabric tears, thins or pulls away from the seam, the DE washes straight through and settles on the pool floor as a fine grey dust.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrdering\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is one large grid. A full 60 square foot filter uses a set of grids, so check how many large elements your tank carries and order accordingly. Because they all run the same hours, it is worth inspecting every grid in the set while the filter is open rather than replacing one at a time.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48626858524884,"sku":"UNI-60-5193","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f6a95c10-ec52-489c-8939-561ac78567af.jpg?v=1788715918"},{"product_id":"filter-cartridge-set-145-sqft-cl580","title":"Unicel 145 Sq Ft Filter Cartridge Set for Jandy CL580","description":"\u003cp\u003eThe Unicel C-7482-4 is a set of four replacement filter cartridges for the Jandy CL580, giving 145 square feet of filtration in total. Each cartridge measures 7 inches in diameter and 33 inches long, with open ends top and bottom.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis set replaces the Jandy OEM cartridges under part number A0104100. If you have been quoted a Pleatco PJAN145 or a Filbur FC-0820, those are the same element from other makers. The single cartridge number is C-7482, and the trailing 4 in C-7482-4 marks it as the four cartridge set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChange all four\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe four cartridges work as one filter area, so replacing one and leaving three tired ones in place gets you very little. When clean pressure no longer drops back to where it read on a new set, or when pleats are torn, stiff or permanently gray, change the whole set together and start the pressure record over.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48627173458132,"sku":"UNI-051-9502","price":458.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_20f00360-41d2-42c5-b1ff-d4e8b4f4bcb6.jpg?v=1788719876"},{"product_id":"cartridge-100-sqft-1","title":"Unicel C-8311 Filter Cartridge, 100 Sq Ft","description":"\u003cp\u003eThe Unicel C-8311 is a 100 square foot replacement filter cartridge for the Hayward CC1000. It measures 17-3\/8 inches long by 8-15\/16 inches in outside diameter, with open end caps top and bottom, each with a 4 inch inner diameter and a molded gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the numbers matter\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge is defined by its dimensions and its media area. Length and diameter decide whether the element seats in the tank, the end cap style and inner diameter decide whether it seals, and the square footage decides how long you go between cleanings. This element carries 194 pleats to reach its 100 square feet, which is what keeps flow up and pressure rise slow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning versus replacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse the element when pressure has climbed roughly 8 to 10 psi over its clean starting point. Over several seasons the fibers pack and the pleats lose their spring, and at that point washing it stops helping. When a freshly cleaned cartridge still starts the cycle high, the element is done.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA note on fit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMeasure the old element before ordering. Cartridges of similar diameter come in several lengths and end cap styles, and a wrong end cap will let water bypass the media entirely.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48627567165652,"sku":"UNI-051-8311","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_930825f8-5942-4688-883c-31cf23e79a7d.jpg?v=1788723715"},{"product_id":"de-grid-17-5x-24-anthony-filters","title":"Unicel DE Grid 17.5\" x 24\" for Anthony Filters","description":"\u003cp\u003eThe Unicel FG-2417 is a replacement DE filter grid measuring 17-1\/2 inches by 24 inches, built as a rectangle with a center hub port. It fits Anthony DE filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the grid does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDE grids are the fabric elements the diatomaceous earth coats. That coat is what actually filters the water, and the grid is the frame and cloth that holds it in place. When the cloth tears or a seam separates, the DE has nowhere to sit and washes straight through into the pool.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSigns it is time\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDE returning to the pool after a charge, cloudy water that will not clear, or a filter that runs at unusually low pressure all point at a grid problem. Pull the set and look for splits and thin, worn fabric.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGrids live in a matched set inside the filter. Fit the same size back in, and if the rest of the set is the same age and visibly worn, changing all of them at once avoids a second teardown.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48627737493716,"sku":"UNI-60-5263","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_954e4ab6-042c-4540-8e12-b5e3a2526a6a.jpg?v=1788727546"},{"product_id":"cartridge-70-sqft","title":"Unicel UHD-SR70 Replacement Cartridge, 70 sq ft","description":"\u003cp\u003eThe Unicel UHD-SR70 is the replacement cartridge element for the Sta-Rite Posi-Flo II PTM TX-70 filter. It measures 8-11\/16 inches outside diameter by 18-3\/16 inches long and drops straight into the tank in place of the original element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOn the square footage\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYou will see this cartridge listed at both 70 and 72 square feet. The 70 is the model designation, TX-70, and it is how the filter itself is sold. The 72 is a media area figure that appears in the same manufacturer data. Either way it is the correct element for that tank, and the physical dimensions above are what determine the fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are cleaned, not replaced, until cleaning stops working. Once a full soak and rinse no longer brings the pressure back down, or the pleats have torn, or the end caps have started to pull away from the media, the element is finished. Running past that point costs you flow, shortens pump life and lets dirt straight back to the pool.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48627841171668,"sku":"UNI-60-5223","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c81ce9e2-fde0-45c5-8800-befe506a6141.jpg?v=1788728098"},{"product_id":"60-sqft-filter-cartridge-4-pack","title":"Unicel 60 SQFT Filter Cartridge (4 Pack)","description":"\u003cp\u003eUnicel C-7469-4 is a set of four 60 sq ft filter cartridges, listed for Pentair American Products Clean and Clear Plus 240 filters. Each element measures 7 inches across and 14-1\/8 inches long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the set matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA four cartridge filter divides the work across all four elements. Mixing a new cartridge with three tired ones does not fix the filter, because the fresh element takes the flow the others can no longer pass and fouls ahead of schedule. Replacing the whole rack at once keeps pressure even and gives you a clean baseline to read the gauge against.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck before ordering\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMeasure your old cartridge: this one is 7 inches in outside diameter and 14-1\/8 inches long, at 60 square feet each. It is listed for the Clean and Clear Plus 240 and may fit other models with the same dimensions.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48627852247252,"sku":"UNI-051-9503","price":241.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_ced1d6c6-4739-4067-af98-a9843ff89994.jpg?v=1788728323"},{"product_id":"cartridge-150-sqft-1","title":"Unicel Cartridge, 150 Sq Ft C-9415","description":"\u003cp\u003eThe Unicel C-9415 is a 150 square foot replacement cartridge element measuring 10-1\/16 inches in outside diameter and 31-1\/8 inches long. It is the standard element for 150 sq ft Pentair style cartridge bodies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it replaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel lists the C-9415 as the replacement for Filbur FC 0687, Pleatco PAP150 4, the Predator 150 and the Pac Fab Clean and Clear 150, part R173216. If the old element carries one of those numbers, this is the direct swap.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow it is built\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe pack carries 155 pleats. The pleat folds are cut sharp so the spacing between pleats stays open, which keeps water moving through the full depth of the media instead of loading only the outer faces. Urethane end caps hold the pack square under flow, and the 6 inch top and bottom openings seat on the manifold and the tank base.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge that will not come back to a clean starting pressure after a proper soak and rinse has reached the end of its life. Fibers that stay grey, cracked pleats or a soft, distorted pack are all reasons to fit a new element rather than clean the old one again.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628776304852,"sku":"UNI-60-5486","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e2950c33-62d3-4574-bca2-dcc3621b9ce9.jpg?v=1788750474"},{"product_id":"30-60-sqft-de-grid","title":"Unicel 30\", 60 Sq Ft DE Grid","description":"\u003cp\u003eThe Unicel FG-1260 is a vertical DE filter grid rated at 60 square feet, made to replace the original element in Purex DE filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSizing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe source lists it as a 30 inch grid and gives the measurements as 10-3\/4 inches by 31-5\/16 inches. Those two readings do not agree exactly, so measure the grid you take out rather than ordering on the name. Getting it wrong on a set of grids is an expensive mistake.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is listed for Purex 2000 Series stainless DE filters, covering the SMBW 2024, 2036, 2048, 2060 and 2072 and the 1018, 1027, 1036, 1045 and 1054, and for Purex 4000 Series molded SM and SMBW filters in 4024, 4036 and 4048 sizes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBuying a set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA DE filter runs a full complement of grids and they wear at much the same rate. When one has gone thin or split from age, the rest are rarely far behind, so plan on a complete set unless a single grid was damaged by something specific.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628786102484,"sku":"UNI-60-5203","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_990b5d4d-c7b0-4c06-b1de-62653f1daeea.jpg?v=1788750647"},{"product_id":"cartridge-100-sqft-2","title":"Unicel C-9699 Cartridge, 100 sq ft","description":"\u003cp\u003eThe Unicel C-9699 is a 100 square foot replacement pool filter cartridge. It measures 9-15\/16 inches across the outside diameter and 19-7\/8 inches long, and it is listed for Jacuzzi (Carvin) cartridge filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOne element, whole filter\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is a single cartridge design, so the one element carries the full 100 square feet of media. That makes the change simple: open the tank, lift the old element out, drop the new one in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the match right\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are matched by length, outside diameter and end cap style rather than by the filter name on the tank, because manufacturers reuse tank bodies. Pull your old element, measure it, and compare it against the dimensions listed here before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and life\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse the pleats out whenever pressure climbs about eight to ten psi over the clean reading, and soak the element periodically to clear oils and scale. When a cleaning no longer drops the pressure back near where it started, the media is spent and it is time for a new cartridge.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628786364628,"sku":"UNI-60-5210","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_b69769bd-10f4-4b32-b366-a0da85ca472a.jpg?v=1788750669"},{"product_id":"cartridge-filter-quad-de-80-20-sqft","title":"Unicel C-6980 Replacement Filter Cartridge, Quad DE 80, 20 Sq Ft","description":"\u003cp\u003eThe Unicel C-6980 is the replacement filter cartridge for the Pentair Quad DE 80. Each cartridge carries 20 square feet of filter area across 42 pleats, built with 8 ounce DE filter media.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrder four\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA Quad DE 80 holds four of these cartridges. Replacing one at a time is possible, but a set of four aged the same way will foul at the same rate, so most owners change all four together and get consistent pressure behavior afterward.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDimensions and fit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge is 6 1\/4 inch in diameter and 26 3\/4 inch long. Both end caps are open with a molded gasket and a 3 inch inner diameter, and the cartridge is made to OEM specifications for the filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy DE media\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 8 ounce DE media is what separates this element from an ordinary cartridge. It filters finer, which shows up as clearer water and longer stretches between cleanings once the pressure has settled after a change.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628790395092,"sku":"UNI-051-6980","price":121.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_866eea25-0dd2-4db8-9c6d-96fff485d00f.jpg?v=1788750739"},{"product_id":"cartridge-100-sqft-3","title":"Unicel Filter Cartridge, 100 Sq Ft, for Jandy CS100","description":"\u003cp\u003eThe Unicel C-8410 is the replacement cartridge for the Jandy CS100 filter. It carries 100 square feet of filter area across 143 pleats of 4 ounce Reemay 2040 media, on an 8-15\/16 in outside diameter with both end caps open at a 4 in inner diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the length\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe source data gives this cartridge two different lengths, 23-5\/16 in in the description and 23-15\/16 in in the specification block. Those readings do not agree, so measure the element you are replacing rather than trusting either figure on its own.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges do not fail suddenly. Pressure creeps up, cleaning intervals get shorter, and eventually a wash makes no difference because the media has closed up. At that point a fresh element restores both flow and clarity, and the filter goes back to running at its designed pressure.\u003c\/p\u003e\u003cp\u003eOrder by the Unicel number C-8410 to get the element built to the original dimensions for the CS100.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628798259412,"sku":"UNI-051-8410","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_23470493-4c0a-4b41-bd0d-b3adcf326f47.jpg?v=1788750866"},{"product_id":"cartridge-filter-50-sqft","title":"Unicel Cartridge Filter, 50 Sq Ft","description":"\u003cp\u003eThe Unicel 4CH-949 is a 50 square foot replacement filter cartridge measuring 4-15\/16 inch across the outside and 13-1\/2 inch in length. It is listed for filters manufactured by Rising Dragon.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the size right\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are ordered by measurement, not by the name on the filter housing. Outside diameter, length and rated square footage are the three numbers to check against the cartridge you are taking out. A cartridge that is close but not exact will let water bypass the media, and unfiltered water going back to the pool defeats the point.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the rating buys you\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFifty square feet is the pleated surface area available to catch dirt. The larger the area, the more the cartridge holds before pressure climbs and it needs cleaning, so a correctly sized cartridge runs longer between service stops.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the most from it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean on pressure rather than on the calendar, rinse the pleats out rather than blasting them, and keep a second cartridge on hand so one can dry completely while the other is in service. Replace the cartridge when the pleats stop coming clean or the media goes limp.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628806385876,"sku":"UNI-051-0949","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_fe07a285-6b8d-4991-b378-4fa9c4957b2b.jpg?v=1788751893"},{"product_id":"hayward-cx1200re-star-clear-plus-pool-filter-cartridge","title":"Unicel C-8412 120 Square Foot Replacement Filter Cartridge","description":"\u003cp\u003eThe Unicel C-8412 is a 120 square foot pleated replacement cartridge. It replaces the Hayward CX1200RE used in the Star Clear Plus, and it is the cartridge for the Waterway Pro Clean 125 and the Waterway Clearwater II 125.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the surface area matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge filter works by spreading flow across as much media as possible. The pleats are what fit 120 square feet into a tank you can lift. Fit a cartridge with less area, or one that has collapsed pleats, and the same flow is forced through less media, which raises pressure, shortens the run between cleanings and pushes dirt deeper into the fabric.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePull the cartridge when the gauge sits roughly 8 to 10 psi above its clean reading. Hose the pleats from the top down so debris washes out rather than in, then soak it in a cartridge cleaner to strip the oils and scale a hose cannot touch. Once cleaning stops bringing the pressure back, or the pleats tear and the end caps loosen, the cartridge is done.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628828307668,"sku":"UNI-60-5482","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_a2b2e140-428a-42e6-83ff-9a9a90263b5d.jpg?v=1788753437"},{"product_id":"cartridge-112-sqft","title":"Unicel C-7489 Cartridge, 112 Sq Ft","description":"\u003cp\u003eThe Unicel C-7489 is a 112 square foot replacement pool filter cartridge. Unicel lists it as the replacement for the Hayward cartridge CX875RE, and the element is listed under Hayward as the filter manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy area matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFilter area is dirt holding capacity. A 112 square foot element gives the pleats room to load before pressure rises, which is what determines how long you run between cleans. Fitting a smaller element in the same tank does not save money, it just means cleaning more often and running the pump against higher pressure in between.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the dimensions before ordering\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe manufacturer data for this cartridge carries two dimension readings. The attribute list gives a 7 in. outside diameter with a 25-1\/2 in. length, while the product description gives 25-3\/8 in. by 6-7\/8 in. by 3 in. Measure your existing element, or go by the Hayward number CX875RE, rather than ordering on the dimensions alone.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628833812692,"sku":"UNI-60-5289","price":100.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_3fa7f4a2-833e-4d8a-b15d-ea95c2c28887.jpg?v=1788753713"},{"product_id":"d-e-grid-15-3-16x-18","title":"Unicel D.E. Grid 15-3\/16\" x 18\"","description":"\u003cp\u003eThe Unicel FG-3015 is a rectangular DE filter grid measuring 15-3\/16 inch by 18 inch, with the exit port at the top center. It is catalogued with the Sta-Rite System 3 DE filters, models S7D75 and S8D110.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow it is built\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel rectangular grids use a reinforced center core, which is what stops the grid from folding under the pressure of a loaded filter. The core is covered in polypropylene cloth that resists mildew and rot, and the seams are stitched with chemical resistant heavy duty string and then sonic welded so they will not fray in service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA grid that is torn, worn thin, split at a seam or bent at the core will pass DE straight into the pool. The giveaway is a dusting of powder on the floor after every recharge. Measure the old grid and check the port position before you order, since a DE filter takes a set of grids in more than one size.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628835483860,"sku":"UNI-60-5518","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_079a28cc-6e6b-4199-aba3-d0dc10c878d9.gif?v=1788753813"},{"product_id":"cartridge-105-sqft","title":"Unicel Cartridge, 105 sq ft, C-7496","description":"\u003cp\u003eThe Unicel C-7496 is a replacement cartridge element rated at 105 square feet. It measures 7 inches across the outside diameter and 25-5\/8 inches long, the dimensions that decide whether a cartridge fits the tank it is going into.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatching it to your filter\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe source lists the filter manufacturer as Purex, the line now carried by Pentair. It also carries two different filter model numbers against this cartridge, which is why the safest check is the physical one: pull the old element, measure the outside diameter and the overall length, and compare them to the numbers above.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are consumable. Once a soak and a rinse no longer bring the filter pressure back to where it started, or the pleats are torn, thinned or permanently discolored, the element has done its work and a new one restores flow.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628844429524,"sku":"UNI-60-5271","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_fc07394c-ec41-4286-b3ce-16a1f8957b74.jpg?v=1788755192"},{"product_id":"filter-cartridge-cx1280xre-4-pack","title":"Unicel Filter Cartridge CX1280XRE, 4 Pack","description":"\u003cp\u003eThis is the Unicel C-7494-4, a set of four filter cartridges for the Hayward SwimClear C-5025 and C-5030. Each element is rated at 131 square feet, measures 7 inches across the outside diameter and stands 32-3\/4 inches tall. Together they replace the Hayward original equipment cartridge CX1280-XRE.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the set matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA SwimClear filters through four elements at once. Water always takes the path of least resistance, so a single new cartridge sitting beside three clogged ones ends up doing most of the work and reaches the end of its life early. Replacing the full set keeps the load even and gets the rated area back.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting and upkeep\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe elements drop into the tank in place of the originals. Rinse them when the pressure gauge climbs above its clean starting point, and plan on a full set again when a wash no longer brings that pressure down.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48628844593364,"sku":"UNI-051-9515","price":368.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c1bafbf5-08a4-410c-838b-1a03ccac113c.jpg?v=1788755201"},{"product_id":"cartridge-81-sqft-c-3025","title":"Unicel C-7483 Filter Cartridge, 81 sq ft, for Hayward SwimClear C3025","description":"\u003cp\u003eThe Unicel C-7483 is an 81 square foot replacement filter cartridge for Hayward C3000, C3020, C3025 and C3030 cartridge filters. It replaces the Hayward CX580XRE element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChecking the fit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge measures 7 inches in diameter and 19.6 inches tall, with a 3 inch inside diameter on the top and bottom caps. That length appears in one source as 19-5\/8 inches, which is the same figure written as a fraction. Measure the old element against those numbers before ordering if you are unsure which generation of tank you have.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplace the set, not one element\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA SwimClear tank in this size class runs several cartridges together. Fitting one new element beside worn ones does not restore the filter, because the fresh cartridge simply takes the load the old ones no longer catch and clogs faster. Change the full set and the tank runs at rated area again.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48629137178836,"sku":"UNI-60-5730","price":76.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1cac97d4-5edd-4e34-8457-29f1e172b951.jpg?v=1788759945"},{"product_id":"filter-cartridge-4-pack-1","title":"Unicel Filter Cartridge 4-Pack, C-7483-4","description":"\u003cp\u003eThe Unicel C-7483-4 is a four pack of C-7483 filter cartridges, each rated at 81 square feet. The Hayward SwimClear C-3025 takes four cartridges, so this pack is the complete set for that filter in one order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDimensions and cross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach cartridge measures 7 inches outside diameter by 19-5\/8 inches long, with open ends of 3 inch inside diameter top and bottom. The same cartridge is listed as Pleatco PA81, Filbur FC-1225 and Hayward OEM CX580XRE, so any of those numbers on the old element points here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChange all four together\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges should be replaced as a set. Water takes the path of least resistance, so a single new element in a bank of worn ones carries far more than its share, blinds off early, and leaves the filter running at a pressure that never really comes down. Rinse the new set on install and note the clean starting pressure, because that reading is what tells you when the next cleaning is due.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48629308817620,"sku":"UNI-051-9510","price":258.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_b96d5d9f-2171-4156-9001-9fd25ab1d81e.jpg?v=1788762184"},{"product_id":"cartridge-200-sqft-2","title":"Unicel C-8418 Filter Cartridge, 200 Sq Ft","description":"\u003cp\u003eThe Unicel C-8418 is a 200 square foot replacement filter cartridge for the Jandy CS 200 cartridge filter, and it replaces Jandy part R0462400.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDimensions and fit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge measures 33.5 by 9.5 by 9 inches, with a 4 inch inside diameter and a 9 inch outer diameter. Both end caps are open with a molded gasket of 4 inches. Measuring the element you are pulling out is the surest check, since several cartridges in this family look similar on a shelf.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace instead of clean\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge can be cleaned and returned to service many times. What ends its life is media that no longer rinses clear, pressure that climbs back quickly after a wash, or pleats that have gone brittle or split. At that point a new element restores both flow and the water clarity the filter was sized for.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48629532688596,"sku":"UNI-051-8418","price":210.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e700ce2b-dac5-4a6b-ab20-6384c812b039.jpg?v=1788766028"},{"product_id":"cartridge-filter-cx1100re","title":"Unicel C-8610 Cartridge Filter, CX1100RE","description":"\u003cp\u003eThe Unicel C-8610 is a 100 square foot replacement filter cartridge for the Hayward Star-Clear II C-1100. It goes in place of the Hayward OEM element CX1100RE and carries the same open top, open bottom construction with 4-1\/16 inch inside diameters at both ends.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSizing and cross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe element measures 8-1\/2 inches across the outside. The source data lists the length two ways, 22-3\/8 inches in the specification table and 23-3\/8 inches in the product detail, so measure your old cartridge if you need certainty before ordering. The same element is sold as Pleatco PA100 and Filbur FC-1290.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the life out of it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges last longest when they are rinsed properly, soaked when the oils build up, and given time to dry before going back in. Replace rather than clean once the pleats are matted or torn, once the end caps have pulled away, or once a clean cartridge no longer brings the filter pressure back to where it started the season.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48629534884052,"sku":"UNI-60-5246","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_662db282-a16e-42cb-a964-843b335ee52b.jpg?v=1788766221"},{"product_id":"cartridge-250-sqft","title":"Unicel C-8425 250 sq ft Replacement Cartridge for Jandy CS250","description":"\u003cp\u003eThe Unicel C-8425 is the replacement filter element for the Jandy CS250 cartridge filter. It carries 250 square feet of 4 oz media on an element measuring 8-15\/16 inches across and 33-1\/8 inches long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the media area buys you\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSquare footage is what sets how long the filter runs between cleanings and how fine a particle it can hold without choking. A full 250 square feet in a CS250 is what the filter was sized around, so the pump sees the pressure drop the system was designed for rather than fighting an undersized element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges do not usually fail, they fill in. The fabric loads with oils and fine debris that no amount of hosing brings back, and the first sign is filter pressure that climbs sooner after every cleaning while the returns get weaker. When cleaning no longer drops the pressure back to where it started, the element is done.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch the model\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel builds this family in several sizes for the Jandy CS filters. Check the model number on your filter body before ordering, because a 250 element will not serve a smaller CS housing.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633368674516,"sku":"UNI-051-8425","price":195.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1ec9764a-4bbc-46f9-9661-5549e2f4d8e5.jpg?v=1788798422"},{"product_id":"48-sqft-filter-grid-each-large","title":"Unicel 48 sqft Filter Grid, Large","description":"\u003cp\u003eThe Unicel FG-1004 is the large 48 square foot vertical DE filter grid, 11 inches by 24 inches, sold one at a time. A complete set uses seven of them, so count what is in your tank before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow it is built\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe grid has a reinforced center core, which is what keeps it in shape while the pump pushes water through it. Over that goes polypropylene cloth chosen for its resistance to mildew and rot. The seams are stitched with chemical resistant heavy duty string and then sonic welded, so they hold instead of fraying open and letting DE through into the pool.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the vertical DE grid pattern used across American, Hayward, Pac-Fab, Sta-Rite and Jandy DE filters. The matching small grid is a separate part, so a full rebuild usually means ordering both sizes.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633441616084,"sku":"UNI-60-5192","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_9a1aaece-07c6-48c5-983f-fbc215dceaf0.jpg?v=1788801805"},{"product_id":"cartridge-150-sqft-2","title":"Unicel Filter Cartridge C-9478, Jacuzzi Brothers CFR-150","description":"\u003cp\u003eThe Unicel C-9478 is a 150 square foot replacement filter cartridge for the Jacuzzi Brothers CFR-150. The element is 24 inches long with an outside diameter of 9-15\/16 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRated area matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge filter is sized around its media area. Fitting an element with less than the rated 150 square feet means shorter runs between cleanings, higher pressure sooner, and more work for the pump. This is the full area element for the tank.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfirm the dimensions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges with similar square footage are made in several diameters and lengths. Take the old element out and measure it end cap to end cap and across the outside before ordering. The CFR-150 is a single cartridge filter, so one element fills the tank.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the life out of it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse the pleats out at the manufacturer recommended pressure interval, and give the element a proper soak when oils and scale build up rather than only hosing it. A cartridge that will not come back down in pressure after a thorough clean has reached the end of its service life.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633455837396,"sku":"UNI-60-5315","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_2ee3f99a-5779-44d4-a852-495384e2398c.jpg?v=1788805009"},{"product_id":"cartridge-35-sqft","title":"Unicel Cartridge, 35 SQFT 5CH-35","description":"\u003cp\u003eThe Unicel 5CH-35 is a 35 square foot replacement filter cartridge measuring 5-5\/8 inch in outside diameter by 8 inch long, with a 1-1\/2 inch MPT threaded fitting on the end.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatching the cartridge\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThree numbers decide whether a cartridge fits: outside diameter, overall length, and the end configuration. This one threads in on a 1-1\/2 inch male pipe thread rather than dropping over a standpipe, which is the arrangement used on many compact spa and small system filters. Unicel lists it against filters from J.E.M.\/Majestic Ind. and Maax Spas.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the life out of it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse the pleats out at every cleaning, and soak the element periodically to lift the oils and scale that a hose cannot reach. When a soaked and rinsed cartridge still runs the pressure up quickly, the media is loaded past recovery and the element is due for replacement.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633671254228,"sku":"UNI-051-0904","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_97406883-f306-4594-b3b2-32e4e9407bbc.jpg?v=1788808553"},{"product_id":"cartridge-135-sqft","title":"Unicel 135 sq ft Filter Cartridge","description":"\u003cp\u003eThe Unicel UHD-SR135 is a 135 square foot replacement cartridge element measuring 8-11\/16\" across the outside diameter and 34-1\/2\" long. It is listed as the replacement for the Sta-Rite WC108-53S1X element.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the two numbers\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are chosen by size, not by filter model alone. Pull the old element, measure the outside diameter and the overall length, and match them to the 8-11\/16\" and 34-1\/2\" figures here. Getting either wrong leaves the element loose in the tank, and water finds its way past instead of through the media.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn element like this is rinsed and put back in service several times before it is finished. The signal that it is done is filter pressure that climbs back to where it was within days of a cleaning, or pleats that have gone brittle, matted or torn. At that point no amount of cleaning restores the flow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat you are buying\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is supplied under the Unicel name and carries the Unicel number UHD-SR135. It is a replacement element for a Sta-Rite filter rather than a Sta-Rite branded cartridge.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633713590484,"sku":"UNI-60-5225","price":134.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_a0d150ad-7a70-42a2-9690-3bc3b803baaf.jpg?v=1788812380"},{"product_id":"cartridge-150-sqft-3","title":"Unicel Cartridge, 150 Sq Ft C-8414","description":"\u003cp\u003eThe Unicel C-8414 is a 150 square foot filter cartridge that replaces the 817-0150N element. It fits the Waterway Proclean 150, the Waterway Clearwater II 150 and the Jandy CS150.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfirm the fit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge is 8-15\/16 inch across and 23-1\/4 inch long. Elements in this range share a family look and differ in length and rating, so measure the one you are taking out and check the 150 square foot rating rather than going by appearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse from the top down and push the water between the pleats. When rinsing no longer brings the filter pressure back to where it started clean, soak the element overnight in a cartridge cleaner. Replace it when a soak stops working, or when the pleats are torn or matted or an end cap has pulled away from the media.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633763758292,"sku":"UNI-051-8414","price":136.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_768d4224-01c8-4cbe-941c-1c898634df0f.jpg?v=1788814673"},{"product_id":"cartridge-135-sqft-1","title":"Unicel UHD-SR137 Replacement Filter Cartridge for Sta-Rite Posi-Flo II PTM","description":"\u003cp\u003eThe Unicel UHD-SR137 is the replacement cartridge element for the Sta-Rite Posi-Flo II PTM 135 filter. It measures 8-11\/16 in. across the outside diameter and 31-1\/4 in. long, which is the size the Posi-Flo II PTM body is built around.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA note on the rating\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe source data lists this element two ways. The product name and title call it 135 square feet, matching the filter model, while the element attributes and the part number itself point to 137 square feet. It is one cartridge either way, and the dimensions above are what determine fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge is done when filter pressure climbs back up quickly after a cleaning, when the pleats stay grey after a soak, or when the fabric has gone soft and the pleats lean over. At that point the element is passing dirt straight back to the pool, and no amount of hosing will bring it back.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633767330004,"sku":"UNI-60-5410","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d9f47937-a910-47e5-b1f4-2266e606201f.jpg?v=1788814911"},{"product_id":"50-sqft-cartridge-baker-hydro-hm-50","title":"Unicel 50 sq ft Cartridge, Baker-Hydro HM-50","description":"\u003cp\u003eThe Unicel C-7605 is the 50 square foot cartridge element for the Baker-Hydro HM-50 filter. It measures 7\" in outside diameter and 19-5\/8\" long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow it is built\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe element carries 110 pleats, which is how it holds 50 square feet of media in that size body. The top cap is an injection molded knob handle style and the bottom is an injection molded cone adapter style, so the element locates on the manifold the way the original did and gives you something to grip when lifting it out of a full tank.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse the pleats out when pressure climbs above the clean starting point, and give the element a chemical soak once a season to clear oils and scale that a hose cannot shift. When cleaning no longer brings the pressure back down, or the pleats are torn, permanently matted or pulling away from an end cap, the element is finished.\u003c\/p\u003e\u003cp\u003eConfirm the filter is a Baker-Hydro HM-50 and compare the element you removed, since a cartridge that is close on diameter but wrong on length or end cap style will not seal.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48633771884756,"sku":"UNI-60-5235","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_6601a3b2-5f73-4559-bb77-c685e151a460.jpg?v=1788815089"},{"product_id":"cartridge-50-sqft","title":"Unicel Cartridge, 50 Sq Ft, C-9650","description":"\u003cp\u003eThe Unicel C-9650 is a 50 square foot pleated filter cartridge for the Jacuzzi and Carvin CFR\/CFT-50 filter. It measures 9-15\/16 inches across and 10 inches long, with an open top and an open bottom.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit and dimensions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe top opening is 5-13\/16 inches inside diameter and the bottom is 6-1\/16 inches, which is what locates the element in the tank. Because the CFR\/CFT-50 is a single cartridge filter, this one element is the entire media pack, so its condition sets how well the filter runs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe same cartridge is carried as Filbur FC-1460, Pleatco PJ50 and OEM number 42294009R. If your old element is marked with one of those numbers rather than a Unicel number, this is the correct replacement.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634024263892,"sku":"UNI-60-5209","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_1d7b215d-1c41-4ce6-85b4-61f2afb96d0f.jpg?v=1788824929"},{"product_id":"cartridge-75-sqft-1","title":"Unicel C-9407 75 sq ft Replacement Filter Cartridge","description":"\u003cp\u003eThe Unicel C-9407 is the 75 square foot replacement filter cartridge for the Pentair Clean and Clear CC75 and the Pentair Predator 75 sq ft cartridge filters. It measures 10-1\/16 inches outside diameter by 16-1\/8 inches long, and it replaces Pentair part number R173214.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBuilt to the rated area\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge is made to meet the original manufacturer specification for the filters it goes into. That matters more than it sounds: a cartridge that is short of its rated square footage loads up faster, drives filter pressure up sooner and shortens the run between cleanings, even though it drops into the tank the same way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace rather than clean\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge is a consumable. Once the pleats stay grey after a proper clean, the fabric feels soft or fuzzy, the end caps have separated or the pressure climbs back within days of cleaning, the element is finished. Chemical soaking buys some of that back on a dirty but sound cartridge, not on a worn one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning it properly\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinse from the top down with a fan spray and work the water between each pleat so the dirt lifts out. Do not use a pressure washer, because the concentrated jet cuts the media and opens a path for unfiltered water. Two cartridges rotated through the season lets each one dry fully between cleanings, which is the single easiest way to make them last.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634033668308,"sku":"UNI-60-5484","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_efafd2d2-373c-460d-8174-9f877697a74a.jpg?v=1788825000"},{"product_id":"cartridge-100-sqft-5","title":"Unicel C-7499 100 sq ft Replacement Filter Cartridge","description":"\u003cp\u003eThe Unicel C-7499 is a 100 square foot replacement cartridge element. It measures 7 inches in outside diameter and 29-3\/8 inches long, with open 3 inch end caps at the top and the bottom, and it is built with 142 pleats.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel lists this element for American Products and Pentair, Hayward and Premier Springwater filters. By model that covers the Commander 100, the Hercules II in the 100 sq ft size and the Star Clear C-1000. If you are working from the old cartridge instead of the filter label, match the diameter, the length and the open 3 inch ends.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross references\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe same element appears as Filbur FC-0650 and Pleatco PCM100SV, and under OEM numbers 27-084, 57014400 and CX1000-RE. Unicel itself carries it as both C-7499 and C-7698.\u003c\/p\u003e\u003cp\u003eA cartridge that no longer cleans up after a soak, or that has flattened pleats or torn media, is the reason filter pressure climbs and turnover falls off. Replacing the element restores the flow the filter was sized for.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634043203796,"sku":"UNI-60-5264","price":76.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_28e10837-4885-4c2c-9884-7dc4c21ae542.jpg?v=1788825199"},{"product_id":"cartridge-filter-75-sqft","title":"Unicel C-8411 75 sq ft Replacement Filter Cartridge","description":"\u003cp\u003eThe Unicel C-8411 is a 75 square foot replacement cartridge element. It measures 8-15\/16 inches in outside diameter and 17-3\/8 inches long, which makes it one of the shorter, wider cartridges rather than a tall slim one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the fit right\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSquare footage on its own does not decide whether a cartridge fits. Two 75 sq ft elements can be completely different shapes, so measure the old cartridge and match the outside diameter and the length before ordering. Unicel lists this element against Hayward, Pentair and Waterway filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace rather than clean\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge is finished when a proper soak stops bringing the filter pressure back down, or when the pleats have flattened, split or gone permanently gray. At that point the media is loaded past recovery, and no amount of hosing restores the flow.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634044711124,"sku":"UNI-60-5552","price":81.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e529d876-7076-48cb-8c22-955238e55b42.jpg?v=1788825248"},{"product_id":"cartridge-50-sqft-1","title":"Unicel UHD-SR50 Cartridge, 50 Sq Ft","description":"\u003cp\u003eThe Unicel UHD-SR50 is the replacement cartridge element for Sta-Rite Posi-Flo filters, also referenced as TX-50. It measures 8-11\/16 in across the outside diameter and 13-5\/16 in long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA note on the rating\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe sources for this cartridge do not agree on filter area. The product name and description call it 50 sq ft, while the product attributes give 52 sq ft. Both readings are carried here rather than picking one. The dimensions are the dependable check: measure the element you are taking out and match it against 8-11\/16 in by 13-5\/16 in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the life out of it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges last longest when they are rinsed properly. Work a hose from the top down and spray between the pleats rather than across them, and leave the pressure washer alone; it forces dirt deeper into the fabric and cuts the media. A soak in cartridge cleaner once a season lifts oils and scale that plain water will not.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGo by pressure rather than appearance. Note the gauge reading with a genuinely clean element, and when that starting number creeps up and stops returning after a wash, the cartridge has reached the end of its service life.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634286276820,"sku":"UNI-60-5222","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_03c6af3d-5d4a-4700-bd2d-cf98511eb657.jpg?v=1788828193"},{"product_id":"cartridge-50-sqft-2","title":"Unicel Cartridge, 50 sq ft, 7CH-50","description":"\u003cp\u003eThe Unicel 7CH-50 is a 50 square foot replacement filter cartridge, 7 inches in outside diameter and 14-3\/4 inches long. Unicel lists it under Coleman Spas, DM Industries, Sunrise Spas of Canada and Wild Water Spa.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatching the cartridge\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCartridges are matched on three things: outside diameter, overall length and the end caps. Get the first two from the numbers above and compare the ends against what you pull out. Ordering by the Unicel part number is the surest route when the original marking on the old cartridge has worn away, which happens quickly in a spa.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRegular rinsing gets a cartridge through a season, and a soak lifts oils and scale that a hose cannot. There is a limit: once the pleats stay discolored after cleaning, or they splay, mat together or tear, the media is spent and flow will not come back. At that point the pump is working against the filter, and a new cartridge is the cheaper answer.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634382155988,"sku":"UNI-60-5309","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c167e846-bc74-47f5-ae08-7a1c9d37cd93.jpg?v=1788828842"},{"product_id":"cartridge-50-sqft-in-line","title":"Unicel C-4950 Filter Cartridge, 50 Sq Ft for Hot Tubs and Spas","description":"\u003cp\u003eThe Unicel C-4950 is a replacement cartridge for the in-line filters used on hot tubs and spas. It carries 50 square feet of filtration area in a body 4-15\/16 inches in outside diameter and 13-5\/16 inches long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the pleat count matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge gets its 50 square feet from 212 pleats folded into that small diameter. More surface area means the same amount of dirt is spread thinner, so the filter runs longer between cleanings and the pump works against less resistance while it does.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel lists this cartridge against Jacuzzi (Carvin), Pentair and Waterway filters. Cartridges of a similar length are not interchangeable if the diameter or the end caps differ, so pull the old one and measure it against the dimensions above.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634475675860,"sku":"UNI-60-5278","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e6e9bc0b-2bb8-4b6c-8b93-260ff3c576a0.jpg?v=1788831987"},{"product_id":"cartridge-60-sqft-ma-fmy-60","title":"Unicel Cartridge, 60 Sq Ft MA\/FMY-60","description":"\u003cp\u003eThe Unicel C-7660 is a 60 square foot replacement filter cartridge measuring 7-7\/8 inches in outside diameter by 14 inches long. Both ends are open style with a 3-1\/16 inch inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is listed for Endless Pool, Pac-Fab and Pentair, and Wet Institute filters, covering the Mitra MA\/MY 60\/160 and the Modufilter M180. Cartridge sizes look alike across brands, so measure the element you are pulling out and compare it against the diameter, the length and the end openings before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCross reference\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe same element is carried as Filbur FC-1930 and Pleatco PFAB60, and it replaces OEM part numbers 17-2810 and 32050203. If your old cartridge carries one of those numbers on the end cap, this is the match.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634477281492,"sku":"UNI-60-5214","price":66.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f9dba106-f6a3-4905-8132-d0130acec9ec.jpg?v=1788832053"},{"product_id":"cartridge-25-sqft","title":"Unicel 25 SQFT Cartridge Filter, Heavy Duty for Hot Tubs and Spas C-4326","description":"\u003cp\u003eThe Unicel C-4326 is a 25 square foot pleated cartridge for hot tubs and spas. It measures roughly 4.93 inches across and 13.31 inches long, listed elsewhere in fractions as 4-15\/16 inches by 13-5\/16 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the pleat count buys you\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe element carries 106 pleats. Packing more folds into the same outside dimensions raises the total media area, which is what the 25 square foot figure describes. More area means the cartridge takes longer to load up with debris, so flow holds steady further into each cleaning cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSpa cartridges are chosen on outside diameter, length and end fitting. One line in the manufacturer data lists the diameter as 4-5\/16 inches rather than 4-15\/16 inches, so the safe move is to measure the cartridge coming out and compare it to the figures above.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCleaning and replacing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRinsing and soaking will keep an element working for a long time, but pleats eventually flatten and the media thins. When a freshly cleaned cartridge no longer restores flow, it is finished.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634500645076,"sku":"UNI-60-5422","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f8658509-4492-45c4-a6d4-02bf49551d27.jpg?v=1788832907"}],"url":"https:\/\/www.activepoolsupply.com\/collections\/unicel.oembed","provider":"Active Pool Supply","version":"1.0","type":"link"}