{"product_id":"pentairmanifoldinternals400k777070209pen777070209","title":"Pentair 400K BTU Pool \u0026 Spa Heater Manifold Internals | 77707-0209","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 77707-0209 is a genuine OEM set of manifold internals for 400,000 BTU Pentair pool and spa heaters. The internal manifold components direct water through the heat exchanger and keep flow balanced inside the heater. Replacing worn, warped or damaged internals restores proper water flow, efficient heat transfer and steady heater operation without replacing the full manifold.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e⚠️ Important Purchase Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is an internal heater component. Installation should be done by a qualified pool heater technician following Pentair's service instructions. Inspect the shipment upon arrival and report damage promptly.\u003c\/p\u003e\n\u003cp\u003eWARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing damaged or deteriorated manifold internals on a 400K Pentair heater.\u003c\/li\u003e\n\u003cli\u003eHeaters with uneven heating or flow problems traced to the manifold.\u003c\/li\u003e\n\u003cli\u003eRoutine heater maintenance and water-system repairs.\u003c\/li\u003e\n\u003cli\u003ePool heater service technicians.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Pentair OEM part, number 77707-0209.\u003c\/li\u003e\n\u003cli\u003eSized for 400,000 BTU pool and spa heaters.\u003c\/li\u003e\n\u003cli\u003eRegulates internal water flow through the heat exchanger.\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the original manifold internals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRestores consistent, efficient heater performance.\u003c\/li\u003e\n\u003cli\u003eSupports proper heat exchange and water circulation.\u003c\/li\u003e\n\u003cli\u003eLower-cost repair than replacing the full manifold or heater.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFor 400,000 BTU Pentair pool and spa heaters, such as select MasterTemp 400 and Sta-Rite Max-E-Therm 400 models. Confirm your heater's model number, serial number and the part number in its parts list before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation or Upgrade Context\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eTurn off power, gas and circulation and let the heater cool. Open the manifold, remove the old internals, install the new 77707-0209 components with fresh seals, then reassemble. Restore water flow, check for leaks and test the heater.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePentair 77707-0209 manifold internal components for 400K heaters, as pictured\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eHeater manifold internals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU \/ Model\u003c\/td\u003e\n\u003ctd\u003e77707-0209\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Size\u003c\/td\u003e\n\u003ctd\u003e400,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and spa heaters; residential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e9 x 9 x 8.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e60 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e022315301580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCovered by a 60-day manufacturer warranty, subject to Pentair’s applicable terms. Contact Pentair for warranty claim instructions; Pool Supply Depot can provide proof of purchase.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my heater?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is made for 400,000 BTU Pentair pool and spa heaters. Check your model and parts list for 77707-0209 before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this the whole manifold?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. These are the internal components only; the manifold housing is sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs professional installation recommended?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Heater internal components should be installed by a qualified pool professional.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762362085686,"sku":"PEN777070209 -H","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-400k-btu-pool-spa-heater-manifold-internals-77707-0209-5497534.jpg?v=1793916069","url":"https:\/\/poolsupplydepot.net\/products\/pentairmanifoldinternals400k777070209pen777070209","provider":"Pool Supply Depot","version":"1.0","type":"link"}