{"product_id":"hayward-heatpro-water-pressure-flow-switch-hpx2181","title":"Hayward HeatPro Water Pressure Flow Switch | HPX2181","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHayward HPX2181 Water Pressure Flow Switch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a genuine replacement part designed for select Hayward HeatPro and Summit XL heat pumps. This switch monitors water pressure and flow to help ensure the heat pump only operates when adequate water circulation is present.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBy detecting proper water flow before heater operation, the HPX2181 helps protect the heat pump from damage caused by low-flow or no-flow conditions. It is a direct replacement component for compatible Hayward heat pump models and is commonly used during heater service, repair, or maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIdeal For\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis replacement switch is ideal for pool owners, service technicians, and maintenance professionals repairing compatible Hayward heat pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRecommended for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eHayward HeatPro heat pumps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHayward Summit XL heat pumps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacing a failed or worn water pressure flow switch\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeat pump systems showing flow or pressure-related faults\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePool equipment service and maintenance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM-style replacement repairs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eGenuine Hayward Replacement Part\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eDesigned as an OEM replacement component for compatible Hayward heat pump systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWater Pressure Flow Monitoring\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eHelps confirm proper water flow before allowing heat pump operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eHelps Protect Heat Pump Components\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003ePrevents operation during low-flow or no-flow conditions that may damage the unit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCompatible with HeatPro Heat Pumps\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eCommonly used on Hayward HeatPro heat pump models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCompatible with Summit XL Heat Pumps\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eAlso used on select Hayward Summit XL heat pump systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDirect Replacement Design\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eMade to replace the original pressure switch without unnecessary modification when used on compatible models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eService-Friendly Part\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eUseful for troubleshooting water flow, pressure switch, or heater startup issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBenefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Hayward HPX2181 helps maintain safe and reliable heat pump operation by verifying adequate water flow before the system runs. A properly working pressure switch can help prevent equipment damage, nuisance shutdowns, and unsafe operation caused by insufficient circulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs a genuine Hayward replacement part, the HPX2181 is designed for fitment and performance with compatible Hayward HeatPro and Summit XL heat pumps. It is a practical replacement part for pool professionals and homeowners maintaining Hayward heat pump systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHayward\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWater Pressure Flow Switch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSKU\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHPPHPX2181\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer Part Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHPX2181\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBarcode \/ UPC\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0610377807098\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Equipment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHayward HeatPro and Summit XL heat pumps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFunction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMonitors water pressure \/ flow\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePool heat pump replacement part\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThread Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1\/2 in. thread listed by some suppliers\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 in. L x 2 in. W x 1\/2 in. thread depth listed by some suppliers\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInstallation Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReplacement part\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNew\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eCustomer-Facing Q\u0026amp;A\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat is the Hayward HPX2181 used for?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe HPX2181 is a water pressure flow switch used on compatible Hayward heat pumps. It helps verify proper water flow before the heat pump operates.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs this a genuine Hayward part?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. HPX2181 is listed as a genuine Hayward replacement part.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat equipment does this fit?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis switch is commonly used with Hayward HeatPro heat pumps and select Hayward Summit XL heat pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat does a water pressure flow switch do?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eIt monitors water pressure or flow and helps prevent the heat pump from operating when there is not enough circulation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCan this fix a heat pump flow error?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eIt may help if the existing pressure switch is faulty. Flow errors can also be caused by low water flow, clogged filters, closed valves, pump issues, or other system problems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDoes this part require professional installation?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eProfessional installation is recommended, especially when diagnosing heater or heat pump safety circuits. Always turn off power to the equipment before servicing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs this part for gas heaters?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNo. This part is used for compatible Hayward heat pumps, not Raypak gas heaters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIs the barcode included in the specs?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. The listed barcode is included near the top and in the specifications table.\u003c\/span\u003e\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52762761101622,"sku":"HPPHPX2181 -H","price":58.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/HPPHPX2181_0.jpg?v=1755535358","url":"https:\/\/poolsupplydepot.net\/products\/hayward-heatpro-water-pressure-flow-switch-hpx2181","provider":"Pool Supply Depot","version":"1.0","type":"link"}