{"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":283.39,"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","url":"https:\/\/www.activepoolsupply.com\/products\/filter-cartridge-4-pack","provider":"Active Pool Supply","version":"1.0","type":"link"}