Hayward CHXRLV1930 Relief Valve Replacement for Select Hayward H-Series Pool Heater ducting 1F auto Hydrostatic Inflator Technology

1F auto Hydrostatic Inflator Technology will automatically inflate under water pressure

prevents rust & corrosion

Also fits swimclear cartridge filter models c5020

But for some small pools

Hayward CHXRLV1930 Relief Valve Replacement for Select Hayward H-Series Pool Heater ducting 1F auto Hydrostatic Inflator TechnologyHayward CHXRLV1930 Relief Valve Replacement for Select Hayward H Series Pool Heater Replacement relief valve Fits hayward h series millivolt heater models h1501, h150p1, h2001, h200p1, h2501, h250p1 Also fits hayward h series pool heater models h100id1, h100idp1 Also fits Hayward H Series models CZ,HM2,CPS,PSG,SG Weighs 18. 7 pounds