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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, h350fdp, h400fdn, h400fdp
Weighs 20 pounds
This 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. Weighs 20 pounds. Used only on heaters made after 5/11/2010, serial #21130005101018001.