GeneralAire® Solenoid Valve, For Use With: GeneralAire® Humidifier Model 1040 and 1137, 1/4 in ID x 1/2 in OD Inlet, 1/4 in ID x 1/2 in OD Outlet, 3/32 Orifice, 24 V, 2.5 W, 2-Wire, 3-1/4 in L