Maxon Parts 150SMA11AA11BB21A0 Gas Shutoff Valve 2 Way Normally Closed, 1 1/2", NPT, 120Vac, 35 Cv 1,525 cfh 0-25 PSI Hydramotor Operated SPDT Auxiliary Switch ** Replaces H118AH122F1, V1AE4H01***