{"product_id":"pentair-mastertemp-hd-cupro-nickel-tube-sheet-coil-kit-77707-0244","title":"Pentair MasterTemp HD Cupro Nickel Tube Sheet Coil Kit | 77707-0244","description":"\u003ch2\u003ePentair MasterTemp HD Cupro Nickel Tube Sheet Coil Kit | 77707-0244\u003c\/h2\u003e\n\u003cp\u003eHeavy-duty cupro nickel heat exchanger kit for 400K MasterTemp HD heaters. Restores heating efficiency and resists corrosion.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCupro nickel construction for superior corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eRestores heat transfer and heater efficiency.\u003c\/li\u003e\n\u003cli\u003eOEM replacement for MasterTemp and Max-E-Therm 400HD heaters.\u003c\/li\u003e\n\u003cli\u003eIncludes coil, O-rings, insulation, and hardware.\u003c\/li\u003e\n\u003cli\u003eIdeal for saltwater and high-chemical environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 77707-0244 Tube Sheet Coil Assembly Kit is a complete heat exchanger replacement for 400K BTU MasterTemp and Max-E-Therm HD heaters. Built from durable cupro nickel, it provides enhanced resistance to corrosion and long-term reliability.\u003c\/p\u003e\n\u003cp\u003eThis assembly replaces the internal heat transfer system, restoring proper heating performance in units experiencing scaling, corrosion, or leaks. It includes essential components for a full rebuild, ensuring proper fit and function.\u003c\/p\u003e\n\u003cp\u003eDesigned for heavy-duty applications, this kit is ideal for demanding pool environments where standard copper exchangers may fail prematurely.\u003c\/p\u003e\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eFlush the system before installation and replace all seals during service to maximize lifespan and prevent future leaks.\u003c\/p\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cp\u003eDisconnect power, gas, and water before servicing. Drain heater completely. Professional installation is recommended due to internal component complexity.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":42407439269973,"sku":"77707-0244","price":1804.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0105\/0837\/0005\/files\/photocomingsoon_797cd922-6ff3-473c-bd45-b5a17fa2f7f4.jpg?v=1763577635","url":"https:\/\/www.epoolsupply.com\/products\/pentair-mastertemp-hd-cupro-nickel-tube-sheet-coil-kit-77707-0244","provider":"ePoolSupply","version":"1.0","type":"link"}