Hayward H-Series Bulb Well After 6/1/01 (HAXTBW1930) pallighting When the existing cartridge has

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

The Magna Flow design helps preserve the intended seat character of the original setup

or poor equipment performance

Supports reliable control communication across long distances

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

Hayward H-Series Bulb Well After 6/1/01 (HAXTBW1930) pallighting When the existing cartridge hasDesigned 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