{"product_id":"flue-sensor-pentair-42002-0024s-fits-mastertemp-pool-heaters","title":"Flue Sensor | Pentair | 42002-0024S (Fits MasterTemp Pool Heaters)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003ePentair MasterTemp Pool Heater Stack Flue Sensor\u003c\/strong\u003e, model 42002-0024S, is a critical component for MasterTemp pool heaters, designed to monitor the exhaust flue and support safe, reliable operation. By tracking flue gas temperature and signaling overheat protection, this sensor helps prevent burner shutdowns and maintains efficient heating. Replacing a worn sensor can reduce nuisance trips and sustain consistent water temperature, ensuring your pool stays ready for daily use.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eModel 42002-0024S — direct replacement flue sensor for Pentair MasterTemp pool heaters (exhaust monitoring).\u003c\/li\u003e \u003cli\u003eMonitors flue gas temperature to trigger safe shutdown and prevent overheating.\u003c\/li\u003e \u003cli\u003eImproves MasterTemp heater reliability and reduces nuisance trips during cycles.\u003c\/li\u003e \u003cli\u003eEasy installation with standard wiring harness; designed for compatibility with MasterTemp units.\u003c\/li\u003e \u003cli\u003eDurable, corrosion-resistant construction built for high-heat, humid pool environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eOrder now to keep your MasterTemp heater running safely and efficiently.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48475770880243,"sku":"PEN420020024S","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/7101\/1571\/files\/PEN420020024S_0_e67ddc80-b6ea-4abc-b10f-8c4c36670931.jpg?v=1771479094","url":"https:\/\/everklearpoolsupply.com\/products\/flue-sensor-pentair-42002-0024s-fits-mastertemp-pool-heaters","provider":"Ever-Klear Pool Supply","version":"1.0","type":"link"}