{"product_id":"pentair-mastertemp-250hd-tube-sheet-coil-kit-474063","title":"Pentair MasterTemp 250HD Tube Sheet Coil Assembly Kit 474063","description":"\u003cp\u003e\u003cstrong\u003ePentair MasterTemp 250HD Tube Sheet Coil Assembly Kit 474063\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRestore heat to your Pentair MasterTemp 250HDNA and 250HD-LP heavy duty heaters (250,000 BTU) with the genuine OEM 474063 tube sheet coil assembly kit. When the heat exchanger coil leaks or scales up, this kit replaces the finned coil and tube sheet together with fresh O-rings, insulation, gaskets, and sealant, so a failed exchanger does not mean replacing the whole heater.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🚩 PRO TIP:\u003c\/strong\u003e Heat-exchanger work is for a qualified technician only — isolate the gas and water, drain the heater, replace every O-ring and gasket in the kit, and pressure- and leak-test the reassembled heater before returning it to service. Match the part number on your existing coil kit before ordering.\u003c\/p\u003e\n\u003ch3\u003ePRODUCT FEATURES \u0026amp; SPECIFICATIONS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 474063\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 788379792015\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pool Heater Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart:\u003c\/strong\u003e Tube sheet coil assembly kit (New Tub Design) with O-rings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Finned tube-sheet coil with header plate, coil\/tubesheet sealing O-ring kit, clamp assembly, insulation kit (top and bottom), gaskets, and silicone tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Pentair MasterTemp 250HDNA and 250HD-LP heavy duty heaters (250,000 BTU HD series, manufactured after January 2009)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Reference:\u003c\/strong\u003e Standard (non-HD) MasterTemp 250 kit is 474059 — not interchangeable with this HD kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 33.3 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFREQUENTLY ASKED QUESTIONS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich heaters does the Pentair 474063 fit?\u003c\/strong\u003e The Pentair 474063 fits Pentair MasterTemp 250HD heavy duty heaters (250HDNA and 250HD-LP); the standard non-HD MasterTemp 250 kit is a different part (474059).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is included in the Pentair 474063 kit?\u003c\/strong\u003e The Pentair 474063 kit includes the finned tube-sheet coil with header plate, the coil\/tubesheet sealing O-ring kit, clamp assembly, insulation kit, gaskets, and silicone sealant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill the Pentair 474063 fix a leaking heater?\u003c\/strong\u003e If the leak is in the heat exchanger coil itself, yes — the Pentair 474063 replaces the coil and tube sheet with fresh seals; leaks at unions or the manifold alone are separate parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWHY SHOP WITH AL'S COOL POOL STORE?:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fast, reliable shipping on every order\u003c\/li\u003e\n\u003cli\u003e✅ Genuine OEM and top-brand parts only\u003c\/li\u003e\n\u003cli\u003e✅ Knowledgeable pool \u0026amp; spa experts ready to help\u003c\/li\u003e\n\u003cli\u003e✅ Hassle-free returns and satisfaction guarantee\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":46405812060295,"sku":"474063","price":1649.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/1217\/4983\/files\/pentair-mastertemp-250hd-tube-sheet-coil-kit-474063-complete.jpg?v=1793634305","url":"https:\/\/alscoolpoolstore.com\/products\/pentair-mastertemp-250hd-tube-sheet-coil-kit-474063","provider":"Al's Cool Pool Store","version":"1.0","type":"link"}