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2-Pin Connector: Easy to connect
Slide valve for sand filter backwash/filter mode selection
A clogged cartridge increases pressure and reduces flow
High BTU Output: Delivers 150
reduced water pooling
Hayward Thermostat Bulb Well, Cotherm | HAXTBW1930 Easy Case 2-Pin Connector: Easy to connectWhat This Part Is Used For The Hayward HAXTBW1930 Thermostat Bulb Well Cotherm houses and protects the thermostat sensing bulb inside select Hayward heaters. It ensures accurate temperature sensing within the water passage. Why This Part Matters A damaged or corroded bulb well can cause inaccurate temperature readings or leaks. Proper sensor placement is critical for consistent heater cycling and water temperature control. Replacing the bulb well
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