{"product_id":"raypakpoolheatermillivoltsensorwell006805fray006805f","title":"Raypak Pool Heater Millivolt Sensor Well | 006805F","description":"\u003cdiv\u003e\n\u003ch2\u003eRaypak 006805F Sensor Well (Thermowell) for Millivolt Pool Heaters\u003c\/h2\u003e\n\u003cp\u003eThe Raypak 006805F is a stainless steel sensor well (thermowell) used on compatible Raypak millivolt-style pool heaters. It threads into the heater header and provides a protected pocket for the temperature sensing probe\/capillary, helping ensure accurate temperature feedback while shielding the sensor from direct water flow and turbulence.\u003c\/p\u003e\n\u003ch3\u003eKey Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Raypak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 006805F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Sensor well \/ thermowell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel tube with brass threaded end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Houses\/protects the temperature sensing element in the header for stable, reliable temperature control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID):\u003c\/strong\u003e 15\/32\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD):\u003c\/strong\u003e 9\/16\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 3-3\/8\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Heater Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRaypak 206A, 266A, 336A, 406A (Digital Atmospheric series)\u003c\/li\u003e\n\u003cli\u003eRaypak 207A, 267A, 337A, 407A (Digital Low NOx Millivolt series)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Compatibility can vary by heater revision and header type. The most reliable confirmation is matching the part number from your heater’s parts breakdown or comparing the original sensor well dimensions and thread style.\u003c\/p\u003e\n\u003ch3\u003eWhat This Part Does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProvides a sealed, threaded mounting point in the heater header for the temperature sensor.\u003c\/li\u003e\n\u003cli\u003eProtects the sensing element from direct water impact, helping improve stability and reduce premature sensor damage.\u003c\/li\u003e\n\u003cli\u003eHelps maintain accurate heater cycling and temperature regulation when the sensor is properly seated in the well.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater seepage\/leaking at the sensor well\/header connection\u003c\/li\u003e\n\u003cli\u003eCracked, corroded, or damaged well tube or threaded end\u003c\/li\u003e\n\u003cli\u003eSensor will not seat properly, is loose, or cannot be secured\u003c\/li\u003e\n\u003cli\u003eHeader service where the original well is seized or damaged during removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShut off gas and power, and allow the heater to cool completely before servicing.\u003c\/li\u003e\n\u003cli\u003eRelieve system pressure and drain down as needed to prevent water loss when the well is removed.\u003c\/li\u003e\n\u003cli\u003eThread the well in carefully to avoid cross-threading the header.\u003c\/li\u003e\n\u003cli\u003eAfter installation, confirm the sensor is fully seated in the well and secured per the heater design.\u003c\/li\u003e\n\u003cli\u003eRestore flow and check for leaks after startup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRelated Products (Aqua Pool Supply)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Raypak+003346F\"\u003eRaypak temperature sensor (003346F)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Raypak+header+gasket\"\u003eRaypak header gaskets\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Raypak+high+limit+switch\"\u003eRaypak high limit switches\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Raypak+pressure+switch\"\u003eRaypak pressure switches\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Raypak+heater+sensor+parts\"\u003eRaypak heater sensor parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaintenance Tip\u003c\/h3\u003e\n\u003cp\u003eIf you’re troubleshooting temperature issues, inspect the sensor seating and the sensor well opening for scale buildup. Keeping the sensor fully seated and the well clean helps the heater read water temperature accurately and cycle properly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":46797844283567,"sku":"006805F","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/raypak-pool-heater-millivolt-sensor-well-006805f-heater-parts-5059630.jpg?v=1777068092","url":"https:\/\/freshized.com\/products\/raypakpoolheatermillivoltsensorwell006805fray006805f","provider":"Freshized","version":"1.0","type":"link"}