Hayward IDXLFLS1930 Flame Sensor Replacement for Hayward Universal H-Series Induced Draft and Gas Heater Flame sensor replacement Fits hayward universal h-series low nox induced draft heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp, h300fdn, h300fdp, h350fdn, h350fdp Also fits hayward universal h-series gas heater model c_paheat Also compatible with Hayward h-series low nox induced draft heater models H400FDN, H400FDP, H250IDL2, H350IDL2, H400IDL2 Weighs 11.3-pound