Hayward FDXLWPS1930 Water Pressure Switch for H-Series Low Nox Pool Heater The WVS003 uses a plastic

The WVS003 uses a plastic split nut

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Hayward FDXLWPS1930 Water Pressure Switch for H-Series Low Nox Pool Heater The WVS003 uses a plasticThis water pressure switch is designed to use with Hayward Universal H Series Low NOx pool heater models H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP, H300FDN, H300FDP, H350FDN, H350FDP, H400FDN, H400FDP. Features: Water pressure switch 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,