{"title":"Pentair MasterTemp Heater Parts","description":"\u003cp\u003eReplacement parts for Pentair MasterTemp Heater, genuine OEM and compatible aftermarket.\u003c\/p\u003e\u003cp\u003eIf the heater is showing a code, \u003ca href=\"\/pages\/pool-heater-error-codes#pentair\"\u003ePentair MasterTemp error codes\u003c\/a\u003e says what it means and which part it names.\u003c\/p\u003e","products":[{"product_id":"pentair-mastertemp-125-manifold-kit-474972","title":"Pentair MasterTemp 125 Manifold Kit, 474972","description":"\u003cp\u003eThe Pentair 474972 is the manifold kit for the MasterTemp 125 pool and spa heater. It brings together the parts on the water side of the heater that wear or leak: the coil and tubesheet sealing o-ring kit, the bottom plate, the baffle plate, the bypass valve, the water pressure switch, a 5\/16 in. stainless steel washer and the hex cap screw.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a kit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOpening the manifold on a MasterTemp is most of the labor, whichever part failed. A weep at the tubesheet means new o-rings, a heater that short cycles or will not fire may be the pressure switch, and a sticking bypass valve throws off water flow through the exchanger. Having all of them in the box means the manifold goes back together once.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit fits the MasterTemp 125 only; the 175 through 400 models use a different manifold. Check the rating plate on your heater and match the model before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624870326484,"sku":"PUR-151-5066","price":283.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_60d042a9-cfcf-4ff6-80f7-a500297015f9.jpg?v=1788647620"},{"product_id":"pentair-mastertemp-461031-heater-direct-air-intake-duct-kit","title":"Pentair MasterTemp Heater Direct Air Intake Duct Kit, 461031","description":"\u003cp\u003eThe Pentair 461031 Direct Air Intake Duct Kit is the combustion air intake for a MasterTemp heater installed indoors. Rather than letting the heater breathe the air in the equipment room, the kit ducts outside air straight to the burner through a 3 in. PVC pipe.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVertical or horizontal\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 3 in. intake can be run vertically through a roof or horizontally through a wall, so it fits most equipment room layouts. It is PVC pipe on the intake side, not metal flue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does not cover\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit is for the air going in. The exhaust vent and the appliance adapter that connects the heater to its flue are separate parts, so plan the exhaust run alongside this kit when you lay out an indoor install.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624885432532,"sku":"PUR-151-1031","price":245.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_0ebd462b-6053-4400-bdf2-fab348763ae2.jpg?v=1788649851"},{"product_id":"pentair-control-board-kit-461105","title":"Pentair Genuine OEM MasterTemp\/Max-E-Therm 6-Button Control Board Kit, 461105Z","description":"\u003cp\u003eThe Pentair 461105Z is the six button control board kit for MasterTemp and Sta-Rite Max-E-Therm gas heaters. It is the factory part, the same board Pentair fits on the production line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMasterTemp and Max-E-Therm heaters share this control system. On the Max-E-Therm side it covers the SR200, SR333 and SR400, where it is listed in the electrical system parts breakdown.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBoard or pad\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIf the heater ignores button presses but the display and firing logic are otherwise normal, check the six button membrane pad first, since it is a separate part. If the display, temperature control or diagnostics are acting up, the board is the more likely cause.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624917938388,"sku":"PUR-151-0974","price":539.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_cc0b28f3-0582-4ad3-955f-d07534fc3e18.jpg?v=1788653288"},{"product_id":"pentair-474059-tube-sheet-coil-assembly-kit-for-250na-250lp-mastertemp-heater","title":"Pentair Tube Sheet Coil Assembly Kit for 250NA 250LP MasterTemp Heater, 474059","description":"\u003cp\u003ePentair 474059 is the tube sheet coil assembly kit for the MasterTemp 250NA and 250LP heaters. It is a genuine Pentair part, and it fits heaters manufactured after 1\/12\/09, the new tub design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEverything for the exchanger swap\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBeyond the coil assembly itself the kit carries 8 coil o-rings, 8 tube sheet seals, a metal tube replacement o-ring, a blower\/adapter plate gasket and a tube of high temp RTV silicone, so the heater goes back together sealed without a second parts order. A manifold bypass valve package, a Koala wool insulation service kit and a sheet metal warning label are also included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIgnitor included\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn ignitor and gasket kit rounds out the package, which makes sense on a job where the burner side is already open.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the heater is a 250NA or 250LP and that its manufacture date is after 1\/12\/09. Earlier heaters use a different tub and are not covered by this kit.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624926687444,"sku":"PUR-151-4059","price":934.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f408ccf4-1e7f-4cbd-ad4f-9abbd4b5c36f.png?v=1788654693"},{"product_id":"pentair-474061-tube-sheet-coil-assembly-kit-cupro-nickel-for-model-400na-400lp-mastertemp-heater","title":"Sta-Rite Tube Sheet Coil Assembly Kit for Model 400NA, 400LP MasterTemp Heater, 474061","description":"\u003cp\u003eThe 474061 kit is the cupro nickel tube sheet coil assembly for Pentair MasterTemp 400NA and 400LP heaters manufactured after 1\/12\/09, the new tub design. It is the genuine Pentair Sta-Rite part and comes with everything the exchanger swap needs, not just the coil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the kit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe tube sheet coil assembly itself, eight coil o-rings, eight tube sheet seals, a metal tube o-ring, a manifold bypass valve package, a blower and adapter plate gasket, an ignitor and gasket kit, a tube of high temp RTV silicone, a Koala wool insulation service kit and a sheet metal warning label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe MasterTemp coil\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMasterTemp and Sta-Rite Max-E-Therm exchangers are built around a generally round coil rather than the straight, flat tube bundle most heaters use. The end plate measures 5-1\/2 in. wide by 8-1\/2 in. tall, the assembly is about 13 in. side to side, and it runs about 15 in. from the plate to the far end of the coil. The photos show the coil from several angles for comparison with yours.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the heater is a 400NA or 400LP built after 1\/12\/09. The 200NA\/200LP and 250NA\/250LP heaters take their own kits.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624928260308,"sku":"STA-151-4061","price":1221.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/474061.jpg?v=1788654846"},{"product_id":"heater-manifold-kit-250-000-btu","title":"Pentair Heater Manifold Kit 250,000 BTU, 460748","description":"\u003cp\u003eThe Pentair 460748 is the genuine manifold kit for the 250,000 BTU MasterTemp pool and spa heater. The manifold is part of the heater's water system, directing pool water through the heat exchanger and back out to the return line.\u003c\/p\u003e\u003cp\u003eMasterTemp manifolds are sized to the heater, so confirm the 250,000 BTU rating on your unit before ordering. A silicone based o-ring lubricant is worth having on hand for reassembly.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624960471252,"sku":"PUR-151-0748","price":510.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_6031f12e-942a-4acd-adb4-1408736b76b2.jpg?v=1788656675"},{"product_id":"pentair-474058-tube-sheet-coil-assembly-kit-cupro-nickel-for-mt-175na-200lp","title":"Pentair Tube Sheet Coil Assembly Kit Cupro Nickel, for MasterTemp 175NA-200LP, 474058","description":"\u003cp\u003eThe Pentair 474058 is the cupro nickel tube sheet coil assembly kit for MasterTemp 175NA, 175LP, 200NA and 200LP heaters. It is the genuine Pentair heat exchanger replacement, the coil pool water runs through while the burner heats it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCupro nickel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe coil is cupro nickel, copper alloyed with nickel. It resists corrosion better than plain copper, which matters because aggressive water chemistry is what usually takes out a heat exchanger. Replacing with the nickel alloy addresses the cause.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOne kit covers both the natural gas (NA) and propane (LP) versions of the MasterTemp 175 and 200. The MasterTemp 300NA and 300LP take the 474060 kit instead.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48624964731092,"sku":"STA-151-4058","price":772.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_dea74d18-b90a-4ab5-bf3c-d92789a2c194.jpg?v=1788656723"},{"product_id":"pentair-476223-ignition-control-module-replacement-kit","title":"Pentair MasterTemp Max-E-Therm Ignition Control Module Replacement Kit, 476223Z","description":"\u003cp\u003eThe Pentair 476223Z is the ignition control module replacement kit for Pentair MasterTemp and Sta-Rite Max-E-Therm pool heaters. It is the genuine Pentair part, also listed under the earlier number 476223.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the module does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe ignition control module runs the heater's lighting sequence: it confirms the safeties are satisfied, energizes the igniter, opens the gas valve and watches for flame. When it fails, the heater typically runs the blower and then locks out without ever firing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDiagnosing before you buy\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA no-ignition fault can also come from the igniter, the air flow switch, the terminal board or the gas supply. Rule those out first; if the sequence stalls at the module, this kit is the fix.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625005658324,"sku":"PUR-151-0973","price":320.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d9cd3327-44ce-40d8-8320-0f763e18af05.jpg?v=1788661912"},{"product_id":"air-blower-kit-250k-natural-gas","title":"Pentair Air Blower Kit 250K Natural Gas, 460743","description":"\u003cp\u003eThe Pentair 460743 is the combustion air blower kit for the MasterTemp 250K BTU natural gas heater. It is the genuine Pentair part for the burner system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the blower does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA MasterTemp is a forced draft heater: the blower pushes air into the burner, and the control will not open the gas valve until it sees that air moving. A blower that has seized, slowed or lost its bearings is a heater that will not light, or one that shuts down partway through a cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMatch it to your heater\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit is for the 250K model on natural gas. The 200K natural gas heater uses a different blower kit, so check the size and fuel on the rating plate before ordering. The photos show the blower from several angles so you can compare the housing, outlet and connector with the one coming off.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625020829908,"sku":"PUR-151-1100","price":642.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f1f00b58-1b88-44b5-a8b8-67d9bbf28a98.jpg?v=1788662357"},{"product_id":"pentair-474958-combustion-chamber-cover-for-max-e-therm-heater","title":"Pentair Combustion Chamber Cover for Max-E-Therm Heaters, 474958","description":"\u003cp\u003eThe Pentair 474958 is the combustion chamber cover for the MasterTemp 125 and Sta-Rite Max-E-Therm 125 heaters, on units manufactured after 11\/16\/13 with the newer 9 bolt lid tub design. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cover closes the top of the burner chamber. If it is warped, cracked or corroded, combustion gases can escape and the airflow through the burner is disturbed, which shows up as poor ignition, soot or a heater that runs rough. Replacing the cover restores the seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the 125 size cover only; larger MasterTemp and Max-E-Therm heaters use different parts. Check the build date on the heater rating plate and count the lid bolts. Nine bolts and a date after 11\/16\/13 confirms the match. Gaskets are not included and are available as a separate Pentair kit.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625021354196,"sku":"PUR-151-4441","price":431.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/pentair_474958.jpg?v=1788662450"},{"product_id":"pentair-474994-flame-holder-kit-for-mastertemp-model-125-heater-burner-system","title":"Pentair Flame Holder Kit for MasterTemp Model 125 Heater Burner System, 474994","description":"\u003cp\u003eThe Pentair 474994 is the flame holder kit for the MasterTemp Model 125 heater burner system. It is the genuine Pentair part, supplied as a kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe flame holder is the piece in the burner assembly that anchors the flame where the gas and air mixture is meant to burn. Over years of firing it can burn through or distort, and when it does the flame pattern goes uneven, ignition gets unreliable and the heater starts nuisance tripping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCheck the model on the heater label. This kit is sized for the MasterTemp 125, and the larger MasterTemp heaters take their own flame holder kits.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625712070868,"sku":"PUR-151-4142","price":151.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_92c2d8ad-0fd0-4699-87ff-6024d3d9434f.jpg?v=1788689049"},{"product_id":"pentair-474060-tube-sheet-coil-assembly-kit-cupro-nickel-for-300na-300lp-mastertemp-heater","title":"Pentair Tube Sheet Coil Assembly Kit, Cupro Nickel, for MasterTemp 300NA and 300LP, 474060","description":"\u003cp\u003eThe Pentair 474060 is the cupro nickel tube sheet coil assembly kit for the MasterTemp 300NA and 300LP pool heaters. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe tube sheet and coil assembly is the section of the heater that carries pool water past the burner. Cupro nickel is a copper nickel alloy chosen for this duty because it holds up better than plain copper against the water chemistry a pool heater sees.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe kit is specific to the 300 size MasterTemp in both natural gas and propane form. Pentair lists a different assembly for the smaller 175NA and 200LP heaters, so read the model plate on the heater before ordering. This is a job for a qualified service tech, since the heater has to be opened up and the gas train disturbed.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625715937492,"sku":"STA-151-4060","price":1053.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_9e0b1418-9b27-42de-93d6-99696a93079e.jpg?v=1788689169"},{"product_id":"mastertemp-basic-manifold-kit","title":"Pentair MasterTemp Basic Manifold Kit, 474200","description":"\u003cp\u003eThe Pentair 474200 is the basic manifold kit for the MasterTemp and Max-E-Therm family of pool and spa heaters. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the manifold is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe manifold is the header on the water side of the heater. Pool water enters through it, passes across the heat exchanger and leaves through it, which makes it one of the hardest working parts in the whole unit and one of the few that sees both full system pressure and the heat of the exchanger.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy it gets replaced\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYears of thermal cycling and unbalanced water chemistry take their toll. A manifold that has cracked or corroded leaks at the pad, and no amount of tightening brings it back. This kit is the factory replacement for that job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the model on your heater and check the manifold part number against the parts list for your unit, since Pentair uses different manifolds across the range.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625719541972,"sku":"STA-151-4070","price":191.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8b6da44d-a786-448f-be14-0a5550e1ab22.jpg?v=1788689901"},{"product_id":"pentair-461107-wire-harness-replacement-kit","title":"Pentair MasterTemp Max-E-Therm Wiring Harness, 461107","description":"\u003cp\u003eThe Pentair 461107 is the genuine wire harness replacement kit for MasterTemp and Max-E-Therm pool heaters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the harness fails\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA heater harness lives in the worst conditions in the equipment pad: heat from the burner tray, moisture from every rain and washdown, and rodents that treat insulation as nesting material. Over time connectors corrode, terminals loosen and insulation goes brittle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat that looks like\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSymptoms rarely announce themselves as a wiring problem. The heater lights sometimes and not others, a sensor reads wrong, a switch appears open when it is not. Technicians replace control modules and sensors chasing faults that were really a bad connection in the harness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting the kit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBecause this is the factory harness, every plug lands where it should on the ignition control, the switches and the sensors. That is the practical argument for the OEM kit over splicing in generic wire: the connectors are right, and the next person to work on the heater sees what Pentair intended.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625746182356,"sku":"PUR-151-0976","price":300.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_d9e19621-c2f1-48f0-b579-dc1ddf38945a.png?v=1788690892"},{"product_id":"switch-f-water-pressure","title":"Pentair MasterTemp Water Pressure Switch, 42001-0060S","description":"\u003cp\u003eThe Pentair 42001-0060S is the water pressure switch for the MasterTemp heater and the ETi 400 High Efficiency heater. It is part of the heater water system, the group of components on the water side of the heater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe pressure switch is a safety. It senses that water is actually moving through the heat exchanger and closes to allow the heater to fire. If it does not close, the heater will not light, which is exactly the behavior you want when flow is low or absent.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe fault it causes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBecause it is a gatekeeper, a failed pressure switch presents as a heater that simply will not come on. The pump runs, the filter is clean, the thermostat is calling, and nothing happens. Once flow has been ruled out, the switch is one of the first parts to test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA note on branding\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis part appears in the source data under both the Pentair and Sta-Rite names. The number that matters is 42001-0060S.\u003c\/p\u003e","brand":"Sta-Rite","offers":[{"title":"Default Title","offer_id":48625747722452,"sku":"STA-151-6251","price":96.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_92d0308c-7974-4048-a5f8-e103b747c71e.png?v=1788691444"},{"product_id":"pentair-tube-sheet-coil-assembly-kit-474065","title":"Pentair Cupro Nickel Tube Sheet Coil Assembly Kit for MasterTemp 400HDNA, 400HD-LP, 474065","description":"\u003cp\u003eThe Pentair 474065 is the cupro nickel tube sheet coil assembly kit for the MasterTemp Model 400HDNA and 400HD-LP heaters. It is the genuine Pentair part and it ships with an o-ring kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it replaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe tube sheet and coil assembly is the heat exchanger core: the water side of the heater, where the burner heat crosses into the pool water. When it corrodes through, the heater leaks internally and no amount of work on the gas side will fix it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCupro nickel and fitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the cupro nickel version. Pentair specifies it for heaters manufactured after 1\/12\/09, the new tub design, so check the manufacture date on the heater before ordering. It is a large, heavy assembly and moves by freight.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625784750292,"sku":"PUR-151-5065","price":1944.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_cd6b8770-3ec2-4419-8887-72dd20ba57c9.png?v=1788692281"},{"product_id":"pentair-474978-air-blower-kit-for-mastertemp-125-natural-gas-heater","title":"Pentair Air Blower Kit for MasterTemp 125 Natural Gas Heater, 474978","description":"\u003cp\u003eThe Pentair 474978 is the air blower kit for the MasterTemp 125 natural gas pool heater. It is the genuine Pentair part, supplied as a kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the blower does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA forced draft heater like the MasterTemp relies on its blower to push combustion air through the burner and the exhaust out. The control board watches for that airflow before it will let the heater light, so a blower that has failed or slowed down usually shows up as a heater that will not fire at all.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePentair lists blowers by heater model and by fuel. This kit is the MasterTemp 125 natural gas version, so check the data plate on the heater and confirm both before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626100076756,"sku":"PUR-151-5079","price":642.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_7d23678a-79cf-4e02-ab11-9d129be6498c.jpg?v=1788704722"},{"product_id":"heat-exchanger-assembly-250k","title":"Pentair Heat Exchanger Assembly 250K, 460747","description":"\u003cp\u003eThe Pentair 460747 is the 250K heat exchanger assembly, listed by Pentair under MasterTemp heater water system parts. It is the genuine factory part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat exchanger is the component that carries pool water through the path of the burner flame. It is the piece that actually does the heating, and it is also the piece that eventually gives out, usually from years of aggressive water chemistry or from scale that has built up inside the tubes and cooked them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHeat exchangers are rated to the heater. This one is the 250K assembly, so read the data plate on your heater and confirm both the model and the BTU rating match before buying. Fitting one is a heater teardown, so it is worth planning to replace gaskets and hardware while the cabinet is open.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626362941652,"sku":"PUR-151-0747","price":922.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_184718c5-713b-43e8-b787-381b6a9888d1.jpg?v=1788709291"},{"product_id":"pentair-474974-union-1-5-kit-for-mastertemp-125","title":"Pentair Union 1.5\" Kit for MasterTemp 125, 474974","description":"\u003cp\u003ePentair 474974 is the 1-1\/2 inch union kit for the MasterTemp Model 125 heater water system. Pentair lists it for Max-E-Therm and MasterTemp heaters, and it is the genuine factory part rather than a generic fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the union does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe unions are the joints that tie the heater into the pool plumbing. They are what lets a service tech break the heater loose and lift it out without cutting pipe, so they matter far beyond the few dollars of plastic involved. They are also a common leak point, because the seal is squeezed every time the union is opened and closed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis is the 1-1\/2 inch kit, which is the size used on the Model 125. Larger MasterTemp models plumb in at a different size, so confirm what is on your heater before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626374803668,"sku":"PUR-151-0403","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/pentair_mastertemp_union.jpg?v=1788709484"},{"product_id":"transformer-kit-dual-voltage","title":"Pentair Transformer Kit, Dual Voltage, 42001-0107S","description":"\u003cp\u003eThe Pentair 42001-0107S is the dual voltage transformer kit for the Sta-Rite Max-E-Therm and Pentair MasterTemp heater electrical system. It is rated 115\/230V, so one part covers a heater wired either way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the transformer does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heater runs its controls on a low voltage circuit, and the transformer is what supplies it. When the transformer fails, the incoming power is still there but nothing on the panel wakes up, which is why a heater that appears completely dead is often a transformer rather than anything in the gas train.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is listed under the Sta-Rite Max-E-Therm SR200, 333 and 400 and the Pentair MasterTemp 175 to 400, which share the same heater electrical system. Confirm the part number on the transformer you are removing, since these heaters ran over a long production period.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626502598868,"sku":"STA-151-0108","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8795d92e-794b-40a5-9216-1f0def4ab496.png?v=1788711040"},{"product_id":"heater-top","title":"Sta-Rite MasterTemp Heater Top, 42002-0034Z","description":"\u003cp\u003eThe 42002-0034Z is the heater top for the MasterTemp gas pool heater, the molded cover that closes the top of the heater cabinet.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe top is not decorative. It is the roof over the burner and the electrical compartment, and it is what keeps rain, leaves and yard debris out of the heater. Once a top has cracked, warped or gone missing, water finds the control board, the wiring and the ignition hardware underneath, and those repairs cost far more than the cover.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is the factory part, molded to drop onto the existing cabinet. Work from the MasterTemp parts breakdown for the fastener locations, and inspect the cabinet edges for corrosion while the old top is off.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626571509972,"sku":"STA-151-0034","price":317.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/42002-0034Z.jpg?v=1788712589"},{"product_id":"sta-rite-77707-0244-tube-sheet-coil-assembly-kit-400k","title":"Pentair Tube Sheet Coil Assembly Kit, Cupro Nickel, for 400HDNA and 400HD-LP MasterTemp HD Heaters, 77707-0244","description":"\u003cp\u003ePentair 77707-0244 is the cupro nickel tube sheet coil assembly kit for the MasterTemp HD series, models 400HDNA and 400HD-LP. It is supplied as a complete kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the build date\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePentair lists this kit for units built prior to 1\/12\/09. Heaters of the same model name changed over their production run, so the date on the heater plate matters as much as the model number here. Confirm both before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy cupro nickel\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCupro nickel is a copper nickel alloy used where plain copper would not last. On commercial duty heaters and on pools with aggressive water chemistry, the alloy resists the corrosion that eats through standard tubing, which is why Pentair offers this version of the coil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it replaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe tube sheet and coil are the heat transfer assembly at the center of the heater. When the coil leaks or corrodes, the heater loses efficiency and can start putting water into the cabinet. This kit brings the assembly back to factory condition rather than patching around it.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626837717204,"sku":"STA-151-7172","price":1805.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/77707-0244.jpg?v=1788715714"},{"product_id":"pentair-474989-thermal-regulator-for-mastertemp-model-125-heater-water-system","title":"Pentair Thermal Regulator for MasterTemp 125 Heater Water System, 474989","description":"\u003cp\u003eThe Pentair 474989 is the thermal regulator for the MasterTemp Model 125 heater water system. It is the genuine Pentair replacement for the regulator fitted at the factory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it sits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe regulator lives in the heater water path. It manages how water moves through the unit, which is what keeps the heat exchanger working within its design range instead of taking the full brunt of whatever the pump sends it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePentair uses more than one regulator across the MasterTemp and Max-E-Therm families. This one is listed for the MasterTemp Model 125. Confirm the part number on the regulator you are pulling out before ordering, since the wrong size will not seat correctly.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627627360468,"sku":"PUR-151-0377","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_aa2a382f-d15f-47ae-b3f1-367a04485035.jpg?v=1788725531"},{"product_id":"mastertemp-switch-membrane-pad","title":"Pentair MasterTemp Switch Membrane Pad, 472610Z","description":"\u003cp\u003eThe Pentair 472610Z is the switch membrane pad for the MasterTemp heater electrical system, listed for use with the NA and LP Series.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the membrane does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe membrane pad is the sealed printed layer on the front of the heater control panel. The buttons you press are part of it, and each press closes a contact beneath the membrane. It also seals the panel against water, which is why it is a wear part on equipment that lives outdoors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYears of sun and weather leave the pad faded, cracked or delaminated, and buttons stop registering. If the display still lights and the heater otherwise behaves, an unresponsive button is more likely the membrane than the board behind it. Replacing the pad is the cheaper thing to rule out first.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627712983252,"sku":"PUR-151-1510","price":134.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_67148bc8-1a33-4348-a761-b8fe3524f4cf.png?v=1788727021"},{"product_id":"pentair-474845-3-pvc-direct-air-intake-duct-kit-for-125-mastertemp-heater","title":"Pentair 474845 3\" PVC Direct Air Intake Duct Kit for 125 MasterTemp Heater","description":"\u003cp\u003eThe Pentair 474845 is the direct air intake duct kit for the MasterTemp 125 pool heater. It is the genuine Pentair kit and it uses 3\" PVC for the intake run.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA gas heater needs a steady supply of combustion air. In an open outdoor install the heater takes that air from around it. Where the heater sits inside a room, a shed or a tight enclosure, a direct air intake kit ducts the air in from outside instead, so the heater is not competing with the space it is standing in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the model first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit is specific to the MasterTemp 125. Larger MasterTemp heaters use their own intake parts, so confirm the model number on the heater data plate before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627837337812,"sku":"PUR-151-1032","price":247.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_06122d66-242e-48d3-9a8b-b4fb5d74df53.jpg?v=1788728037"},{"product_id":"blower-kit-lp-sr333","title":"Sta-Rite Air Blower Kit for 333 Propane Max-E-Therm Burner System, 77707-0255","description":"\u003cp\u003ePart 77707-0255 is the air blower kit for the model 333 propane Max-E-Therm burner system. It replaces the combustion air blower on the LP version of that heater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the blower does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA modern pool heater does not simply light a burner. It first pushes a measured volume of air through the burner system and confirms that airflow is present before it will allow gas. The blower is what supplies that air. If it fails, or if its airflow drops below what the control expects, the heater locks out and never gets as far as ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck fuel and size first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit is specific to the 333 size running on propane. The natural gas version and the other heater sizes take different kits, so read the rating plate rather than working from the model name alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA note on the brand\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eYou will see this part under two names. It is listed as Sta-Rite with the Max-E-Therm heater line, and the source also describes it as a Pentair part filed under the MasterTemp burner system. Those heater lines share the hardware, so both references point at the same kit.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627886325972,"sku":"STA-151-0255","price":709.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_20fc9ea5-6715-4fca-9757-6e8b50d20047.png?v=1788729624"},{"product_id":"pressure-relief-valve-50psi","title":"Pentair MasterTemp Pressure Relief Valve 50 PSI, 473715Z","description":"\u003cp\u003eThe Pentair 473715Z is the 50 PSI pressure relief valve for the Max-E-Therm and MasterTemp heater water system. It is the genuine Pentair replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the valve is there\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA gas heater can build pressure faster than the plumbing can shed it if a valve is closed against it or the system traps water while the burner is firing. The relief valve is the deliberate weak point: it opens at 50 PSI and dumps rather than letting the heat exchanger or the pipework take the load. It is the last defence, and it is the one part on the heater that should never be bypassed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to change it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRelief valves fail toward leaking. Scale and corrosion keep the seat from closing again after it has lifted, so the valve seeps continuously and the heater loses water. If yours weeps, has been lifted repeatedly, or somebody has plugged it, fit a new one. Confirm the 50 PSI rating is the one your heater calls for before you install it.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627978928340,"sku":"PUR-151-3715","price":148.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_8e35f36f-258d-44fc-977e-6a2ff6959210.jpg?v=1788732219"},{"product_id":"o-ring-kit-manifold-tube-coil","title":"Pentair Manifold O-Ring Kit for Max-E-Therm and MasterTemp Heater Burner System, 77707-0120","description":"\u003cp\u003eThe Pentair 77707-0120 is the manifold o-ring kit for the burner system used on Max-E-Therm and MasterTemp heaters. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the kit\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe o-rings for the manifold, the tube and the coil, supplied together as one kit. Those are the seals disturbed whenever the burner system is opened up for service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace them as a set\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOld o-rings take a set, harden and stop sealing once they have been compressed and then released. Since almost all of the work is in opening the heater, changing every seal at once is the sensible way to do it rather than reusing two and coming back for them later.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48628743700692,"sku":"STA-151-6285","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5a60f154-1584-4f6a-8cba-ea1ad95dca93.jpg?v=1788749573"},{"product_id":"pentair-42002-0033z-manifold-side-panel-for-mastertemp®-heater","title":"Pentair Manifold Side Panel for MasterTemp Heater, 42002-0033Z","description":"\u003cp\u003eThe Pentair 42002-0033Z is the manifold side panel for the MasterTemp pool heater. It is the genuine Pentair replacement for the panel fitted at the factory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich panel this is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe MasterTemp cabinet is made up of separate panels, and this one covers the manifold side. The panel on the other side of the heater carries a different part number, so identify which side is damaged before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy it matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCabinet panels are not decoration. They keep rain, leaf litter, insects and animals out of a heater full of wiring, gas components and hot surfaces. A panel that is cracked, corroded through or missing after a service call should be replaced rather than left off.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48628847771860,"sku":"STA-151-0155","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_50cebac7-8532-4fe8-8f85-c30f12e8489f.png?v=1788755253"},{"product_id":"pentair-42002-0039z-side-service-panel-for-mastertemp®-heater","title":"Pentair Side Service Panel for MasterTemp Heater, 42002-0039Z","description":"\u003cp\u003eThis is the Pentair 42002-0039Z side service panel for the MasterTemp pool heater, the genuine factory part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy a panel gets replaced\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe side service panel is the removable side of the heater cabinet, which makes it the piece that gets taken off for service and the piece that gets damaged. Corrosion at the equipment pad, a knock from a piece of maintenance equipment, or a panel that was never refitted properly all end with a heater cabinet that no longer closes the way it should.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHeater cabinet panels are specific to the model. Check part number 42002-0039Z against the panel called out for your MasterTemp before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48628856783060,"sku":"STA-151-0156","price":319.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5cdf9882-38ed-40d6-943e-5ffee21c11b4.png?v=1788755462"},{"product_id":"pentair-461063-natural-gas-to-propane-conversion-kit-for-model-125-mastertemp-heater","title":"Pentair Natural Gas to Propane Conversion Kit for 125 MasterTemp Heater, 461063","description":"\u003cp\u003eThe Pentair 461063 is the genuine conversion kit that takes a Model 125 MasterTemp pool heater from natural gas to propane.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOne direction, one model\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFuel conversion kits are specific in both senses. This one goes natural gas to propane, not the reverse, and it is built for the 125 size MasterTemp. The larger MasterTemp heaters take different kits because the orifice sizing follows the burner rating. Read the model number and BTU rating off the heater data plate before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat conversion involves\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePropane and natural gas are delivered at different pressures and carry different energy per unit of volume, so the heater has to be re orificed and the manifold pressure reset for the new fuel. That is what the kit is for. It is listed under the MasterTemp burner system, which is where the work is done.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWho should fit it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHave a qualified gas technician do the conversion. The gas train has to come apart, the new orifices go in, the pressure is set with a manometer, and every joint that was opened has to be leak tested. In most jurisdictions this is licensed work, and a heater running on the wrong orifice for its fuel is a genuine hazard rather than just a performance problem.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48628965933268,"sku":"PUR-151-7410","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_c9b465de-a425-442f-a172-44e6a8dd77bc.png?v=1788758511"},{"product_id":"pentair-474952-combustion-chamber-o-ring-kit","title":"Pentair Combustion Chamber O-Ring Kit for MasterTemp 125, 474952","description":"\u003cp\u003eThe Pentair 474952 is the combustion chamber o-ring kit for the MasterTemp 125 pool heater. It is the genuine Pentair part and belongs to the heater burner system group.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen you need it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe combustion chamber has to seal on reassembly. Any job that opens it up, igniter work, burner tray service, an inspection after a shutdown, disturbs the seals, and a seal that has been compressed once has usually taken a permanent set. Refitting an old one is the common reason a chamber will not close up tight again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis kit is listed for the MasterTemp 125. The larger MasterTemp models use their own seal parts, so check the model plate on the heater rather than going by the family name.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48629300789460,"sku":"PUR-151-3844","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/pentair_474952.jpg?v=1788762109"},{"product_id":"volt-selector-plug-kit","title":"Pentair Voltage Selector Plug Kit for Max-E-Therm Heater Electrical System 120\/240 V, 42001-0105S","description":"\u003cp\u003eThe Pentair 42001-0105S is the voltage selector plug kit for the Max-E-Therm and MasterTemp heater electrical system, covering the 120\/240 V selection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese heaters can be wired for either 120 V or 240 V supply, and the selector plug is what tells the electrical system which one it is looking at. 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