The AFC 161 (12v) is 2 way normally closed solenoid valve tested for low/high pressure leaks and dielectric breakdown. Rated for use with propane, gasoline, diesel, natural gas and air. The valve has one inlet and one outlet at 90° and does not pass fluid or air until the coil is energized. Pipe Size: 3/8"NPT Orifice: 5/16"