Hayward H-Series Bulb Well After 6/1/01 (HAXTBW1930) pallighting the valve can lose the

the valve can lose the clean separation and control it was designed to provide

When the existing cartridge has reached the end of its service life

Replacement jacket top for select Hayward H-Series ED2 300 heaters

A filter cartridge is useful because it helps remove suspended debris from circulating water

Supports reliable control communication across long distances

Hayward H-Series Bulb Well After 6/1/01 (HAXTBW1930) pallighting the valve can lose theDesigned for Hayward H Series heaters built after June 1, 2001, this bulb well provides the protective pocket needed for proper sensing component placement inside the heater assembly. It helps shield the sensing bulb from direct exposure while still allowing accurate temperature response, making it an important part when restoring dependable heater operation. A worn, damaged, or corroded bulb well can affect serviceability and should be replaced with