HSH-Flo 3/8" AC110V Electric Solenoid Valve NPT, Brass, Normally Closed (AC110V Brass) Voltage: AC110V Solenoid Valve Inlet/Outlet Ports:3/8" Female NPT Threads Valve Type:Direct Acting, Wet Armature Body Material: Brass Operation Mode: Normally Closed. Both wires can be used as positive or negative