{"product_id":"pentaireti400heatexchangerreplacement475623pen475623","title":"Pentair Eti400 Heat Exchanger Replacement  | 475623","description":"\u003ch2 data-section-id=\"1p927wt\" data-start=\"179\" data-end=\"198\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"200\" data-end=\"558\"\u003eThe \u003cstrong data-start=\"204\" data-end=\"257\"\u003ePentair ETi 400 Heat Exchanger Replacement 475623\u003c\/strong\u003e is a genuine OEM replacement component designed for the \u003cstrong data-start=\"314\" data-end=\"360\"\u003ePentair ETi 400 High Efficiency Gas Heater\u003c\/strong\u003e. The heat exchanger is one of the most important parts of the heater, transferring heat from the combustion system into the pool or spa water without direct contact between the flame and the water.\u003c\/p\u003e\n\u003cp data-start=\"560\" data-end=\"929\"\u003eBuilt with Pentair’s \u003cstrong data-start=\"581\" data-end=\"631\"\u003eTitanTough™ titanium heat exchanger technology\u003c\/strong\u003e, this replacement part is designed for long-lasting durability, efficient heat transfer, and resistance to corrosion in demanding pool and spa environments. It is ideal for restoring heating performance when the original heat exchanger is worn, leaking, scaled, or no longer operating efficiently.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1vdrhtn\" data-start=\"931\" data-end=\"943\"\u003eIdeal For\u003c\/h2\u003e\n\u003cp data-start=\"945\" data-end=\"990\"\u003eThis heat exchanger replacement is ideal for:\u003c\/p\u003e\n\u003cp data-start=\"992\" data-end=\"1232\"\u003ePentair ETi 400 heater repairs\u003cbr data-start=\"1022\" data-end=\"1025\"\u003eReplacing a leaking or damaged heat exchanger\u003cbr data-start=\"1070\" data-end=\"1073\"\u003eRestoring pool or spa heater efficiency\u003cbr data-start=\"1112\" data-end=\"1115\"\u003eProfessional pool heater service and maintenance\u003cbr data-start=\"1163\" data-end=\"1166\"\u003eResidential pool and spa heating systems using the ETi 400 model\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1234\" data-end=\"1249\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"1251\" data-end=\"1390\"\u003e\u003cstrong data-start=\"1251\" data-end=\"1286\"\u003eGenuine Pentair OEM Replacement\u003c\/strong\u003e\u003cbr data-start=\"1286\" data-end=\"1289\"\u003eManufactured by Pentair for proper fit, reliable performance, and compatibility with ETi 400 heaters.\u003c\/p\u003e\n\u003cp data-start=\"1392\" data-end=\"1507\"\u003e\u003cstrong data-start=\"1392\" data-end=\"1435\"\u003eDesigned for the Pentair ETi 400 Heater\u003c\/strong\u003e\u003cbr data-start=\"1435\" data-end=\"1438\"\u003eMade specifically for the Pentair ETi 400 High Efficiency Gas Heater.\u003c\/p\u003e\n\u003cp data-start=\"1509\" data-end=\"1659\"\u003e\u003cstrong data-start=\"1509\" data-end=\"1552\"\u003eTitanTough™ Heat Exchanger Construction\u003c\/strong\u003e\u003cbr data-start=\"1552\" data-end=\"1555\"\u003eBuilt with corrosion-resistant titanium technology for enhanced durability in pool and spa applications.\u003c\/p\u003e\n\u003cp data-start=\"1661\" data-end=\"1806\"\u003e\u003cstrong data-start=\"1661\" data-end=\"1692\"\u003eRestores Heater Performance\u003c\/strong\u003e\u003cbr data-start=\"1692\" data-end=\"1695\"\u003eHelps return the heater to proper heat-transfer efficiency when the existing heat exchanger is damaged or worn.\u003c\/p\u003e\n\u003cp data-start=\"1808\" data-end=\"1946\"\u003e\u003cstrong data-start=\"1808\" data-end=\"1834\"\u003eReliable Heat Transfer\u003c\/strong\u003e\u003cbr data-start=\"1834\" data-end=\"1837\"\u003eTransfers thermal energy into pool or spa water while keeping combustion gases separated from the water path.\u003c\/p\u003e\n\u003cp data-start=\"1948\" data-end=\"2063\"\u003e\u003cstrong data-start=\"1948\" data-end=\"1981\"\u003eProfessional Replacement Part\u003c\/strong\u003e\u003cbr data-start=\"1981\" data-end=\"1984\"\u003eA critical heater component recommended for qualified service and installation.\u003c\/p\u003e\n\u003ch2 data-section-id=\"2qq1z5\" data-start=\"2065\" data-end=\"2076\"\u003eBenefits\u003c\/h2\u003e\n\u003cp data-start=\"2078\" data-end=\"2208\"\u003e\u003cstrong data-start=\"2078\" data-end=\"2106\"\u003eHelps Extend Heater Life\u003c\/strong\u003e\u003cbr data-start=\"2106\" data-end=\"2109\"\u003eReplacing a failed heat exchanger can help restore the heater instead of replacing the entire unit.\u003c\/p\u003e\n\u003cp data-start=\"2210\" data-end=\"2341\"\u003e\u003cstrong data-start=\"2210\" data-end=\"2241\"\u003eImproves Heating Efficiency\u003c\/strong\u003e\u003cbr data-start=\"2241\" data-end=\"2244\"\u003eA clean, properly functioning heat exchanger allows the heater to transfer heat more effectively.\u003c\/p\u003e\n\u003cp data-start=\"2343\" data-end=\"2486\"\u003e\u003cstrong data-start=\"2343\" data-end=\"2373\"\u003eCorrosion-Resistant Design\u003c\/strong\u003e\u003cbr data-start=\"2373\" data-end=\"2376\"\u003eTitanium construction helps withstand harsh pool water conditions when water chemistry is properly maintained.\u003c\/p\u003e\n\u003cp data-start=\"2488\" data-end=\"2616\"\u003e\u003cstrong data-start=\"2488\" data-end=\"2527\"\u003eOEM Fit Reduces Installation Issues\u003c\/strong\u003e\u003cbr data-start=\"2527\" data-end=\"2530\"\u003eUsing the original Pentair replacement part helps ensure proper fit and compatibility.\u003c\/p\u003e\n\u003cp data-start=\"2618\" data-end=\"2763\"\u003e\u003cstrong data-start=\"2618\" data-end=\"2652\"\u003eSupports Safe Heater Operation\u003c\/strong\u003e\u003cbr data-start=\"2652\" data-end=\"2655\"\u003eA damaged heat exchanger can affect heater performance and reliability, making timely replacement important.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"2765\" data-end=\"2782\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2784\" data-end=\"3244\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2784\" data-end=\"2811\"\u003e\n\u003ctr data-start=\"2784\" data-end=\"2811\"\u003e\n\u003cth data-start=\"2784\" data-end=\"2800\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"2800\" data-end=\"2811\" data-col-size=\"md\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2822\" data-end=\"3244\"\u003e\n\u003ctr data-start=\"2822\" data-end=\"2841\"\u003e\n\u003ctd data-start=\"2822\" data-end=\"2830\" data-col-size=\"sm\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-start=\"2830\" data-end=\"2841\" data-col-size=\"md\"\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2842\" data-end=\"2895\"\u003e\n\u003ctd data-start=\"2842\" data-end=\"2857\" data-col-size=\"sm\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2857\" data-end=\"2895\"\u003eETi 400 Heat Exchanger Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2896\" data-end=\"2926\"\u003e\n\u003ctd data-start=\"2896\" data-end=\"2916\" data-col-size=\"sm\"\u003eSKU \/ Part Number\u003c\/td\u003e\n\u003ctd data-start=\"2916\" data-end=\"2926\" data-col-size=\"md\"\u003e475623\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2927\" data-end=\"2959\"\u003e\n\u003ctd data-start=\"2927\" data-end=\"2943\" data-col-size=\"sm\"\u003eBarcode \/ UPC\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2943\" data-end=\"2959\"\u003e788379882754\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2960\" data-end=\"3005\"\u003e\n\u003ctd data-start=\"2960\" data-end=\"2975\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2975\" data-end=\"3005\"\u003ePool Heater Heat Exchanger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3006\" data-end=\"3068\"\u003e\n\u003ctd data-start=\"3006\" data-end=\"3022\" data-col-size=\"sm\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3022\" data-end=\"3068\"\u003ePentair ETi 400 High Efficiency Gas Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3069\" data-end=\"3106\"\u003e\n\u003ctd data-start=\"3069\" data-end=\"3091\" data-col-size=\"sm\"\u003eHeat Exchanger Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3091\" data-end=\"3106\"\u003eTitanTough™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3107\" data-end=\"3130\"\u003e\n\u003ctd data-start=\"3107\" data-end=\"3118\" data-col-size=\"sm\"\u003eMaterial\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3118\" data-end=\"3130\"\u003eTitanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3131\" data-end=\"3175\"\u003e\n\u003ctd data-start=\"3131\" data-end=\"3145\" data-col-size=\"sm\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3145\" data-end=\"3175\"\u003ePool and Spa Heater Repair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3176\" data-end=\"3194\"\u003e\n\u003ctd data-start=\"3176\" data-end=\"3187\" data-col-size=\"sm\"\u003eOEM Part\u003c\/td\u003e\n\u003ctd data-start=\"3187\" data-end=\"3194\" data-col-size=\"md\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3195\" data-end=\"3244\"\u003e\n\u003ctd data-start=\"3195\" data-end=\"3217\" data-col-size=\"sm\"\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3217\" data-end=\"3244\"\u003eApprox. 20\" x 20\" x 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"px9lge\" data-start=\"3246\" data-end=\"3268\"\u003eCustomer-Facing Q\u0026amp;A\u003c\/h2\u003e\n\u003cp data-start=\"3270\" data-end=\"3402\"\u003e\u003cstrong data-start=\"3270\" data-end=\"3320\"\u003eQ: Is this a genuine Pentair replacement part?\u003c\/strong\u003e\u003cbr data-start=\"3320\" data-end=\"3323\"\u003eA: Yes. Part number 475623 is a genuine Pentair OEM heat exchanger replacement.\u003c\/p\u003e\n\u003cp data-start=\"3404\" data-end=\"3526\"\u003e\u003cstrong data-start=\"3404\" data-end=\"3437\"\u003eQ: What heater does this fit?\u003c\/strong\u003e\u003cbr data-start=\"3437\" data-end=\"3440\"\u003eA: This heat exchanger is designed for the Pentair ETi 400 High Efficiency Gas Heater.\u003c\/p\u003e\n\u003cp data-start=\"3528\" data-end=\"3694\"\u003e\u003cstrong data-start=\"3528\" data-end=\"3567\"\u003eQ: What does the heat exchanger do?\u003c\/strong\u003e\u003cbr data-start=\"3567\" data-end=\"3570\"\u003eA: The heat exchanger transfers heat into the pool or spa water while keeping the combustion system separate from the water.\u003c\/p\u003e\n\u003cp data-start=\"3696\" data-end=\"3856\"\u003e\u003cstrong data-start=\"3696\" data-end=\"3730\"\u003eQ: Is this made from titanium?\u003c\/strong\u003e\u003cbr data-start=\"3730\" data-end=\"3733\"\u003eA: Yes. This replacement uses Pentair’s TitanTough™ titanium heat exchanger design for corrosion resistance and durability.\u003c\/p\u003e\n\u003cp data-start=\"3858\" data-end=\"4048\"\u003e\u003cstrong data-start=\"3858\" data-end=\"3899\"\u003eQ: When should this part be replaced?\u003c\/strong\u003e\u003cbr data-start=\"3899\" data-end=\"3902\"\u003eA: Replacement may be needed if the heat exchanger is leaking, damaged, scaled, corroded, or no longer allowing the heater to operate efficiently.\u003c\/p\u003e\n\u003cp data-start=\"4050\" data-end=\"4239\"\u003e\u003cstrong data-start=\"4050\" data-end=\"4091\"\u003eQ: Can a homeowner install this part?\u003c\/strong\u003e\u003cbr data-start=\"4091\" data-end=\"4094\"\u003eA: Because this is a major gas heater component, installation should be performed by a qualified pool heater technician or licensed professional.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762853376310,"sku":"PEN475623 -H","price":3249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/184611_0_2023122913455_6909eadb-e6e2-4d3c-b084-576634378eac.webp?v=1770325387","url":"https:\/\/poolsupplydepot.net\/products\/pentaireti400heatexchangerreplacement475623pen475623","provider":"Pool Supply Depot","version":"1.0","type":"link"}