{"title":"Pentair ETi 400 Heater Replacement Parts","description":"\u003cp\u003eInteractive exploded-view parts diagram for the Pentair ETi 400 Heater. Switch between the General, Burner System, Burner (cont.) \u0026amp; Condensate, Water System \u0026amp; Controls views, then click any numbered part to see the part number, price and stock, or call us and we will find it for you.\u003c\/p\u003e","products":[{"product_id":"pentairmultiportvalvedrainplugworingu178920pzpenu178920pz","title":"Pentair Multiport Valve Drain Plug w\/ O-Ring | U178-920PZ","description":"\u003cdiv\u003e\n\u003ch1\u003ePentair Multiport Valve Drain Plug with O‑Ring | U178‑920PZ\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair U178‑920PZ Multiport Valve Drain Plug\u003c\/strong\u003e is a genuine OEM replacement designed for use with Pentair multiport valves. Equipped with a durable O‑ring seal, this drain plug ensures a water-tight fit inside the valve’s drain port, allowing for easy drainage during winterizing or maintenance without leaks.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Pentair Part:\u003c\/strong\u003e Ensures compatibility and long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure O‑Ring Seal:\u003c\/strong\u003e Prevents leaks and ensures a tight fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Drainage:\u003c\/strong\u003e Allows simple removal for draining and reinstallation when refilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from chemical‑resistant polymer for reliability in pool environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e U178‑920PZ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Drain plug with integrated O‑ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High‑quality, corrosion‑resistant plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Fits Pentair multiport valves for cartridge and D.E. filter systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKeep your Pentair multiport valve sealed and leak-free during both operation and winterization with the \u003cstrong\u003eU178‑920PZ Multiport Valve Drain Plug with O‑Ring\u003c\/strong\u003e. A simple, reliable solution for proper pool maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eSKU: U178-920PZ\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":51576143905084,"sku":"U178-920PZ","price":8.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-multiport-valve-drain-plug-w-o-ring-u178-920pz-pentair-744404.jpg?v=1750391776"},{"product_id":"pentairmastertemppoolheaterhighlimitswitch420010063spen420010063s","title":"Pentair MasterTemp Pool Heater High Limit Switch | 42001-0063S","description":"\u003cdiv\u003e\n\u003ch2\u003ePentair High‑Limit Switch – Model 42001‑0063S\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair 42001‑0063S\u003c\/strong\u003e is an OEM high‑limit safety switch designed for use in select Sta‑Rite Max‑E‑Therm and Pentair MasterTemp pool \u0026amp; spa heaters. It monitors high temperatures in the heater system and interrupts the electrical circuit if safe thresholds are exceeded.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFail‑safe thermal cut‑off switch for heater control systems\u003c\/li\u003e\n\u003cli\u003eDirect replacement part: 42001‑0063S\u003c\/li\u003e\n\u003cli\u003eCompatible with Sta‑Rite Max‑E‑Therm and Pentair MasterTemp heater electrical assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModel \/ SKU: 42001‑0063S\u003c\/li\u003e\n\u003cli\u003eFunction: High‑limit electrical switch — opens the circuit when the water or heat exchanger exceeds set temperature\u003c\/li\u003e\n\u003cli\u003eApplication: Sta‑Rite Max‑E‑Therm (SR‑series) and Pentair MasterTemp heaters\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 year limited (check manufacturer terms)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eMaintenance Tip:\u003c\/em\u003e When servicing the heater, always turn off power first. Verify correct part number and settings. Inspect thermal switch for signs of overheating or discoloration. Replace immediately if the heater displays a “HLS” error code or if the switch shows evidence of thermal stress. After installation, perform a system test run to confirm heater resets properly and all safeties are functioning.\u003c\/p\u003e\n\u003cp\u003eSKU: 42001-0063S\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52336013639996,"sku":"42001-0063S","price":47.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-mastertemp-pool-heater-high-limit-switch-42001-0063s-heater-parts-9169654.jpg?v=1761744479"},{"product_id":"pentairmastertemppoolheaterthermistor420010053spen420010053s","title":"Pentair MasterTemp Pool Heater Thermistor | 42001-0053S","description":"\u003c!--split--\u003e\n\u003cdiv\u003e\n\u003ch1\u003ePentair Mastertemp \u0026amp; Max-E-Therm Thermistor 42001-0053s\u003c\/h1\u003e\n\u003cp\u003eEnsure your pool or spa heater operates efficiently with the Pentair Thermistor 42001-0053s, a crucial replacement part designed for precise temperature regulation. This thermistor and water sensor is compatible with several high-performance heaters, including the ETI400, Mastertemp, and Sta-Rite Max-E-Therm models.\u003c\/p\u003e\n\u003cp\u003eThis replacement thermistor is tailored specifically for the electrical systems of Pentair Sta-Rite Max-E-Therm and MasterTemp pool and spa heaters. Its role is critical in providing accurate temperature readings to the heater's control system, ensuring optimal heating performance and energy efficiency.\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermistor Replacement:\u003c\/strong\u003e Direct replacement for the original part, ensuring continued accuracy and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits perfectly with the electrical systems of both Pentair Sta-Rite Max-E-Therm and MasterTemp pool and spa heaters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate Temperature Sensing:\u003c\/strong\u003e Essential for maintaining the desired water temperature and efficient heater operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstalling the Pentair Thermistor 42001-0053s is a straightforward way to maintain the efficiency and reliability of your heating system, helping to extend the life of your pool or spa heater while ensuring consistent, comfortable water temperatures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eSKU: 42001-0053S\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589951156540,"sku":"42001-0053S","price":58.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-mastertemp-pool-heater-thermistor-42001-0053s-heater-parts-7878792.jpg?v=1771561347"},{"product_id":"pentairmastertemppoolheaterwaterpressureswitch420010060spen420010060s","title":"Pentair MasterTemp Pool Heater Water Pressure Switch | 42001-0060S","description":"\u003c!--split--\u003e\n\u003ch1\u003ePentair Mastertemp Pressure Switch Replacement 42001-0060S\u003c\/h1\u003e\n\u003cp\u003eIntroducing the Pentair Mastertemp Pressure Switch Replacement 42001-0060S, a vital component designed specifically for Pentair Mastertemp and Max-E-Therm Pool Water Systems and Spa Heaters. This water pressure switch ensures optimal performance and safety in your pool and spa heating system.\u003c\/p\u003e\n\u003ch3\u003eFEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed to fit Pentair Mastertemp \u0026amp; Max-E-Therm Pool Water System and Spa Heaters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctionality:\u003c\/strong\u003e This water pressure switch monitors and controls the water pressure within the heating system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Construction:\u003c\/strong\u003e Built with precision and high-quality materials to ensure durability and long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Engineered for a straightforward installation process, integrating seamlessly into your existing system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eENHANCE YOUR HEATING SYSTEM CONTROL\u003c\/h3\u003e\n\u003cp\u003eThe Pentair Mastertemp Pressure Switch Replacement 42001-0060S is an essential component for maintaining the proper water pressure in your pool and spa heating system. Its compatibility with specific Pentair heaters and quality construction ensures that your heating system operates efficiently and safely.\u003c\/p\u003e\n\u003ch3\u003eORDER NOW\u003c\/h3\u003e\n\u003cp\u003eInvest in the safety and efficiency of your heating system with the Pentair Mastertemp Pressure Switch Replacement 42001-0060S. Order now to enjoy the benefits of a well-designed pressure switch for your pool and spa heater.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/online.flippingbook.com\/view\/60126269\/\" title=\"Brochure | MasterTemp 400 - English\"\u003e\u003cspan\u003eBrochure | MasterTemp 400 - English\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/online.flippingbook.com\/view\/3145380\/\" title=\"Brochure | Gas Pool Heaters Family Brochure\"\u003e\u003cspan\u003eBrochure | Gas Pool Heaters Family Brochure\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/mastertemp-heater-manual-english.pdf\" style=\"font-size: 0.875rem;\"\u003eMasterTemp Installation and Users Guide - English\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/archive\/mastertemp400-pool-and-spa-heater-installation-and-users-guide-spanish.pdf\" style=\"font-size: 0.875rem;\"\u003eMasterTemp Installation and Users Guide - Spanish\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/mastertemp\/MasterTemp_and_Max-E-Therm_Bypass_Access_Plug_Kit_Instructions_ASME_Models_Only_English.pdf\" style=\"font-size: 0.875rem;\"\u003eMasterTemp and Max-E-Therm Bypass Access Plug Kit Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/mastertemp\/MasterTemp_and_Max-E-Therm_Heater_Direct_air_Intake_Duct_with_3_inch_PVC_Pipe_Kit_Installation_Instructions_English.pdf\" style=\"font-size: 0.875rem;\"\u003eMasterTemp and Max-E-Therm Direct air Intake Duct Kit Installation Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/mastertemp\/MasterTemp_and_Max-E-Therm_Heater_Groundwire_Kit_Installation_Instructions_English.pdf\" style=\"font-size: 0.875rem;\"\u003eMasterTemp and Max-E-Therm Groundwire Kit Installation Instructions\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/mastertemp\/Heater_Checklist.pdf\" style=\"font-size: 0.875rem;\"\u003eHeater Checklist\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/heater-replacement-kits\/mastertemp-orifice-adjustment-kit-manual.pdf\" title=\"MasterTemp Orifice Adjustment Kit Instructions PDF\" style=\"font-size: 0.875rem;\"\u003eMasterTemp Orifice Adjustment Kit Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/brochure\/max-e-therm-heaters-for-pools-and-spas-en.pdf\" target=\"_blank\"\u003eMax-E-Therm Heaters for Pools and Spas - English\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/brochure\/max-e-therm-heater-connected-brochure-french.pdf\"\u003eMax-E-Therm Heaters for Pools and Spas - French\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/manuals\/max-e-therm-manual-english.pdf\"\u003eMax-E-Therm Users Guide - English\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/manuals\/Max-E-Therm_Pool_and_Spa_Heater_Users_Guide_French.pdf\"\u003eMax-E-Therm Users Guide - French\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/manuals\/Max-E-Therm_Pool_and_Spa_Heater_Users_Guide_Spanish.pdf\"\u003eMax-E-Therm Users Guide - Spanish\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/max-e-therm\/StaRite_Heater_Connector_Tube_Installation_Instructions_English.pdf\"\u003eStaRite Heater Connector Tube Installation Instructions\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/manuals\/maxetherm-heater-manifold-replacement-manual-english.pdf\" title=\"maxetherm manifold replacement manual english\"\u003eMax-E-Therm Heater Manifold Replacement Instructions Manual\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/max-e-therm\/MasterTemp_and_Max-E-Therm_Heater_Groundwire_Kit_Installation_Instructions_English.pdf\"\u003eMasterTemp and Max-E-Therm Heater Groundwire Kit Installation Instructions\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/max-e-therm\/MasterTemp_and_Max-E-Therm_Heater_Direct_air_Intake_Duct_with_3_inch_PVC_Pipe_Kit_Installation_Instructions_English.pdf\"\u003eMasterTemp and Max-E-Therm Direct air Intake Duct Kit Installation Instructions\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/max-e-therm\/Heater_Checklist.pdf\"\u003eHeater Checklist\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/max-e-therm\/manuals\/starite-maxetherm-heater-submittal-data-sheet.pdf\" target=\"_blank\"\u003eMax-E-Therm Heater Submittal Data Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/MaxETherm_Heater_Burner_System.pdf\"\u003eMaxETherm Heater Burner System\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/MaxETherm_Heater_Electrical_System.pdf\"\u003eMaxETherm Heater Electrical System\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/MaxETherm_Heater_Water_System.pdf\"\u003eMaxETherm Heater Water System\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/pentair_heater_auto_bypass_valve_replacement%20_kit.pdf\"\u003eAuto By-Pass Valve Kit\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/pentair_heater_wire_harness_replacement%20_kit.pdf\"\u003eHeater Wire Harness Kit\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/pentair_heater_icm_module_replacement%20_kit.pdf\"\u003eHeater ICM Module Replacement Kit\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/heater-replacement-kits\/pentair-heater-control-pcba-membrane-pad-replacement-kit.pdf\"\u003eHeater Control PCBA Membrane Pad Replacement Kit\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/mastertemp\/manual\/heater-replacement-kits\/pentair-heater-rs485-combo-conversion-replacement-kit.pdf\"\u003eHeater RS-485 Replacement Kit\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eSKU: 42001-0060S\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589951189308,"sku":"42001-0060S","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-mastertemp-pool-heater-water-pressure-switch-42001-0060s-heater-parts-7391663.png?v=1771561345"},{"product_id":"pentaireti400condensateneutralizerkit475612pen475612","title":"Pentair ETI-400 Condensate Neutralizer Kit | 475612","description":"\u003c!--split--\u003e\n\u003ch1\u003ePentair 475612 ETI400 Condensate Neutralizer Kit - 4.0 Gal\/hr (15.0 I\/hr)\u003c\/h1\u003e\n\u003cp\u003eThe Pentair ETI400 Condensate Neutralizer Kit is designed to prevent acidic condensate from corroding drains and sewer systems, making it an essential addition to your Natural Gas and Propane appliances. With its low-profile design and corrosion-resistant materials, this kit offers fast and easy installation, ensuring a more environmentally friendly and neutral environment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondensate Neutralization:\u003c\/strong\u003e Effectively prevents acidic condensate from damaging systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-Friendly:\u003c\/strong\u003e Neutralized condensate is more environmentally friendly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Designed for fast and hassle-free installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeptic System Support:\u003c\/strong\u003e Helps maintain a neutral environment for bacteria in septic systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Profile Design:\u003c\/strong\u003e Ideal for appliances with a near-floor condensate drain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistant:\u003c\/strong\u003e Built with all corrosion-resistant materials for long-lasting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for use on all types of Natural Gas and Propane appliances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Comes with an initial charge of neutralizing agent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Mounting:\u003c\/strong\u003e Can be mounted in horizontal or vertical position.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInvest in the Pentair 475612 ETI400 Condensate Neutralizer Kit to protect your plumbing system and contribute to a greener environment. Its versatile design and robust construction make it a valuable addition to any home or commercial space.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/eti-400-eti-250\/brochure\/eti-heater-family-brochure-english.pdf\" title=\"ETi 400 \u0026amp; ETi 250 Family Brochure - English\" target=\"_blank\"\u003eETi 400 \u0026amp; ETi 250 Family Brochure - English\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/eti-400-eti-250\/brochure\/eti-heater-family-brochure-spanish.pdf\" title=\"ETi 400 \u0026amp; ETi 250 Family Brochure - English\" target=\"_blank\"\u003eETi 400 \u0026amp; ETi 250 Family Brochure - Spanish\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/gas-heaters-family\/gas-pool-heaters-family-brochure.pdf\" target=\"_blank\"\u003eGas Pool Heaters Family Brochure\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/eti-400-eti-250\/eti-400-user-manuals\/eti400-heater-manual-english.pdf\" target=\"_blank\"\u003eETi 400 High Efficiency Gas Heater Owners Manual - English\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/eti-400-eti-250\/eti-400-user-manuals\/eti400-heater-manual-spanish.pdf\" target=\"_blank\"\u003eETi 400 High Efficiency Gas Heater Owners Manual - Spanish\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/eti-400-eti-250\/eti-400-user-manuals\/eti400-heater-manual-french.pdf\" target=\"_blank\"\u003eETi 400 High Efficiency Gas Heater Owners Manual - French\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/eti400\/Heater_Checklist.pdf\" target=\"_blank\"\u003eHeater Checklist\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/eti400\/ETi%20400%20Heater%20Propane%20Conversion%20Manual.pdf\" target=\"_blank\"\u003eETi 400 Heater Propane Conversion Manual\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/eti400\/Manual%20for%20ETi%20Heater%20Gas%20Valve%20Replacement%20Kit%20476111A%20ENSPFR%20111417.pdf\" target=\"_blank\"\u003eETi 400 Heater Gas Control Valve Replacement Kit Manual for 476001\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/product-related\/product-manuals\/pool-and-spa-equipment\/eti400\/Manual%20for%20ETi%20Heater%20Blower%20Kit%20476110A%20ENSPFR%20111417.pdf\" target=\"_blank\"\u003eETi 400 Heater Combustion Blower Replacement Kit for 47600\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/heaters\/eti-400-eti-250\/eti-400-user-manuals\/eti400-quickref-english.pdf\" title=\"ETi 400 Quick Reference Guide\" target=\"_blank\"\u003eETi 400 Quick Reference Guide\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/parts-sheets\/heaters\/ETi_400_Heater.pdf\" target=\"_blank\"\u003eETi 400 Heater Replacement Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eSKU: 475612\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589951615292,"sku":"475612","price":209.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/475612_2.jpg?v=1725048576"},{"product_id":"pentaireti400indoorairintakekit475971pen475971","title":"Pentair ETI-400 Indoor Air Intake Kit | 475971","description":"\u003cdiv\u003e\n  \u003ch1\u003ePentair ETI-400 Indoor Air Intake Kit | 475971\u003c\/h1\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003ePentair ETI-400 Indoor Air Intake Kit (475971)\u003c\/strong\u003e is an accessory designed specifically for the\n    \u003cstrong\u003ePentair ETI-400 Condensing Gas Heater\u003c\/strong\u003e. This kit allows the heater to safely draw combustion air from an\n    indoor mechanical room or equipment space when outdoor air access isn’t ideal or available, helping ensure proper\n    combustion and efficient operation in enclosed installations.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eWhat This Part Is For\u003c\/h2\u003e\n  \u003cp\u003e\n    This indoor air intake kit is intended for use with the \u003cstrong\u003ePentair ETI-400 Condensing Gas Heater\u003c\/strong\u003e when\n    installed inside utility rooms, garages, or other enclosed areas where direct outdoor air intake is not feasible.\n    It provides a dedicated pathway for combustion air from within the space while maintaining safe clearances and airflow\n    required by the heater’s design.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eDesigned for indoor installations of the Pentair ETI-400 condensing heater\u003c\/li\u003e\n    \u003cli\u003eAllows combustion air to be drawn from a mechanical room or enclosed space\u003c\/li\u003e\n    \u003cli\u003eHelps maintain optimal combustion performance when outdoor intake is restricted\u003c\/li\u003e\n    \u003cli\u003eIncludes components engineered to match OEM specifications for fit and function\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFollow manufacturer instructions to maintain required clearances and proper airflow\u003c\/li\u003e\n    \u003cli\u003eSeal all intake connections to prevent back-drafting and ensure safe combustion\u003c\/li\u003e\n    \u003cli\u003eVerify that the heater has adequate air supply before operation\u003c\/li\u003e\n    \u003cli\u003eWork with a qualified HVAC or gas professional for proper indoor combustion air setup\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eMaintenance Tips\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003ePeriodically inspect intake ducting for obstruction or debris buildup\u003c\/li\u003e\n    \u003cli\u003eCheck seals and connections to prevent air leaks\u003c\/li\u003e\n    \u003cli\u003eKeep surrounding areas clear of obstructions to support proper airflow\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eRelated Products\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-condensing-gas-heater\"\u003e\n        Pentair ETI-400 Condensing Gas Heater\n      \u003c\/a\u003e\n      – The main heater model that this indoor air intake kit is designed to work with.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-condensate-neutralizer-replacement-kit\"\u003e\n        Pentair ETI400 Condensate Neutralizer Replacement Kit\n      \u003c\/a\u003e\n      – Replacement kit for treating acidic condensate before drain discharge.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-stack-flue-sensor-replacement-kit-475601\"\u003e\n        Pentair ETI400 Stack Flue Sensor Replacement Kit (475601)\n      \u003c\/a\u003e\n      – Replacement flue sensor part to help maintain safe combustion monitoring.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-service-kit\"\u003e\n        Pentair ETI400 Service Kit\n      \u003c\/a\u003e\n      – General maintenance kit with common service parts for the ETI400 heater.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589970063676,"sku":"475971","price":163.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-air-intake-kit-for-eti-400-heater-475971-pool-heater-parts-131655.jpg?v=1711094089"},{"product_id":"pentairstackfluesensoreti400pen475601z","title":"Pentair ETI400 Stack Flue Sensor Replacement Kit | 475601","description":"\u003cdiv\u003e\n\u003ch1\u003ePentair ETI400 Stack Flue Sensor Replacement Kit | 475601\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003ePentair ETI400 Stack Flue Sensor Replacement Kit (475601)\u003c\/strong\u003e is a genuine replacement sensor assembly designed for the \u003cstrong\u003ePentair ETI400 Series Condensing Gas Heater\u003c\/strong\u003e. The stack flue sensor monitors exhaust temperature and combustion conditions, helping the heater’s control system maintain safe, efficient operation and protect internal components.\u003c\/p\u003e\n\u003ch2\u003eWhat This Part Is For\u003c\/h2\u003e\n\u003cp\u003eThis replacement sensor is specifically made for the \u003cstrong\u003ePentair ETI400 Condensing Gas Heater\u003c\/strong\u003e. Replace it when the original flue sensor fails, reads out of range, or triggers error codes—issues that can lead to inefficient combustion, shutdowns, or false safety trips.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOEM replacement stack flue temperature sensor for ETI400 heaters\u003c\/li\u003e\n\u003cli\u003eHelps maintain efficient and safe combustion performance\u003c\/li\u003e\n\u003cli\u003ePrevents false shutdowns or error conditions due to bad sensor readings\u003c\/li\u003e\n\u003cli\u003eDurable design for long-term service in heater environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurn off power and gas supply before servicing\u003c\/li\u003e\n\u003cli\u003eRemove the old sensor and install the replacement in the same position\u003c\/li\u003e\n\u003cli\u003eEnsure connectors and wiring are secure to prevent poor readings\u003c\/li\u003e\n\u003cli\u003eTest heater operation after replacement to confirm proper function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMaintenance Tips\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the sensor wiring and connector during routine service\u003c\/li\u003e\n\u003cli\u003eClean surrounding flue areas if soot or buildup is present\u003c\/li\u003e\n\u003cli\u003eReplace at the first sign of erratic temperature readings or service codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pentair-eti400-condensing-gas-heater\"\u003e Pentair ETI400 Condensing Gas Heater \u003c\/a\u003e – The main heater model that this sensor kit supports.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pentair-eti400-service-kit\"\u003e Pentair ETI400 Service Kit \u003c\/a\u003e – General maintenance kit with common service parts for the ETI400 heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pentair-eti400-condensate-neutralizer-replacement-kit\"\u003e Pentair ETI400 Condensate Neutralizer Replacement Kit \u003c\/a\u003e – Kit to neutralize acidic condensate and protect drain lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/pentair-eti400-indoor-direct-air-intake-kit\"\u003e Pentair ETI400 Indoor Direct Air Intake Kit \u003c\/a\u003e – Accessory kit for indoor installations requiring dedicated airflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589970096444,"sku":"475601Z","price":51.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/475601_4.jpg?v=1724707860"},{"product_id":"pentaireti400naturalgastopropaneconversionkit476072pen476072","title":"Pentair ETI400 Natural Gas to Propane Conversion Kit | 476072","description":"\u003cdiv\u003e\n  \u003ch1\u003ePentair ETI400 Natural Gas to Propane Conversion Kit | 476072\u003c\/h1\u003e\n\n  \u003cp\u003e\n    The \u003cstrong\u003ePentair ETI400 Natural Gas to Propane Conversion Kit (476072)\u003c\/strong\u003e is a fuel conversion accessory designed for\n    the \u003cstrong\u003ePentair ETI400 Series Condensing Gas Heater\u003c\/strong\u003e. This kit provides the necessary orifices and hardware to\n    safely convert your heater from natural gas operation to propane (LP), allowing you to switch fuel types when propane is\n    the preferred or available option at your pool equipment location.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eWhat This Part Is For\u003c\/h2\u003e\n  \u003cp\u003e\n    This conversion kit is intended for use with the \u003cstrong\u003ePentair ETI400 Condensing Gas Heater\u003c\/strong\u003e when changing from\n    natural gas to propane fuel. Using the correct orifices and included conversion components ensures the heater burns\n    efficiently and safely on propane, maintaining proper combustion and heat output.\n  \u003c\/p\u003e\n\n  \u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eComplete conversion kit engineered for ETI400 heaters switching to propane LP fuel\u003c\/li\u003e\n    \u003cli\u003eIncludes jets\/orifices and related hardware for correct fuel delivery adjustment\u003c\/li\u003e\n    \u003cli\u003eDesigned to meet original equipment manufacturer specifications\u003c\/li\u003e\n    \u003cli\u003eHelps maintain efficient combustion and heat output after conversion\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eConversion must be performed by a qualified technician or licensed gas professional\u003c\/li\u003e\n    \u003cli\u003eFollow the Pentair ETI400 service manual instructions during installation\u003c\/li\u003e\n    \u003cli\u003eVerify all gas connections are secure and free of leaks before operation\u003c\/li\u003e\n    \u003cli\u003eCheck heater combustion and safety systems once conversion is complete\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eMaintenance Tips\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eInspect propane connections and regulator periodically for wear or leaks\u003c\/li\u003e\n    \u003cli\u003eClean burners and orifices if performance declines\u003c\/li\u003e\n    \u003cli\u003ePerform seasonal service to help ensure peak performance after conversion\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eRelated Products\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-condensing-gas-heater\"\u003e\n        Pentair ETI400 Condensing Gas Heater\n      \u003c\/a\u003e\n      – The main heater model that this conversion kit supports.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-condensate-neutralizer-replacement-kit\"\u003e\n        Pentair ETI400 Condensate Neutralizer Replacement Kit\n      \u003c\/a\u003e\n      – Neutralizer assembly kit to protect drains from acidic condensate.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-service-kit\"\u003e\n        Pentair ETI400 Service Kit\n      \u003c\/a\u003e\n      – Maintenance kit with high-wear parts for routine service.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003ca href=\"\/products\/pentair-eti400-indoor-direct-air-intake-kit\"\u003e\n        Pentair ETI400 Indoor Direct Air Intake Kit\n      \u003c\/a\u003e\n      – Accessory kit for indoor installations needing dedicated combustion air intake.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589970129212,"sku":"476072","price":88.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-propane-gas-conversion-kit-for-eti-400-heater-476072-heater-parts-105655.jpg?v=1711094319"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/collections\/pentair-eti-400-heater-general.png?v=1790358671","url":"https:\/\/aquapoolsupply.com\/collections\/parts-list-pentair-eti-400-heater.oembed","provider":"Aqua Pool Supply","version":"1.0","type":"link"}