{"product_id":"thermistor-pentair-42001-0053s-ntc-thermistor-mastertemp-heaters-for-mastertemp-heaters","title":"Thermistor | Pentair | 42001-0053S | NTC Thermistor | MasterTemp Heaters (For MasterTemp Heaters)","description":"\u003cdiv\u003e\n\u003cp\u003eThe Pentair MasterTemp Pool Heater Thermistor (42001-0053S) is a critical temperature sensor that ensures your MasterTemp heater reads water temperature accurately, delivering reliable heating performance.\u003c\/p\u003e\n\u003cp\u003eDesigned to keep pool water at a comfortable, healthy temperature, this genuine replacement part helps prevent erratic readings that can lead to short cycling or uneven heating. By maintaining precise temperature sensing, it supports proper filtration and consistent water quality across the season.\u003c\/p\u003e\n\u003cp\u003eIdeal for pool owners and service professionals maintaining MasterTemp systems, this thermistor is built to withstand typical outdoor pool environments and chemical exposure while delivering dependable readings over time.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Pentair replacement part\u003c\/strong\u003e — model 42001-0053S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise temperature sensing\u003c\/strong\u003e for stable heater operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy-to-install replacement\u003c\/strong\u003e during routine maintenance\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompatible with Pentair MasterTemp pool heater models\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e designed for wet, chemically treated pools\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKeep your pool heating on schedule and your water properly filtered with this essential thermistor. \u003cstrong\u003eOrder today\u003c\/strong\u003e to ensure your MasterTemp system performs at its best.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48475770650867,"sku":"PEN420010053S","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/7101\/1571\/files\/PEN420010053S_0.jpg?v=1771479089","url":"https:\/\/everklearpoolsupply.com\/products\/thermistor-pentair-42001-0053s-ntc-thermistor-mastertemp-heaters-for-mastertemp-heaters","provider":"Ever-Klear Pool Supply","version":"1.0","type":"link"}