Hayward FDXLTER1930 FD Thermistor Replacement for Hayward Universal H-Series Low Nox Pool Heater sponge and foaming

and foaming

The addition of Vapor Shield "military grade" anti-fog technology keeps these lenses completely resistant to fog

Fits F400 and F500 series as well as Fh66

Compatible with all sanitizers and pool surfaces

Hayward FDXLTER1930 FD Thermistor Replacement for Hayward Universal H-Series Low Nox Pool Heater sponge and foamingHayward FDXLTER1930 FD Thermistor Replacement for Hayward Universal H Series Low Nox Pool Heater Replacement fd thermistor Fits hayward universal h series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp Also fits hayward universal h series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp Weight 4 pounds