Air and Fuel Gas Solenoid Valve, Air and Fuel Gas Solenoid Valve, 2-Way/2-Position, Normally Closed, Media - Valves Air, Fuel Gas, Pipe Size - Valves 1 1/2 in, Min. Operating Pressure Differential 0 psi, Max. Operating Pressure Differential Air/Inert Gas 25 psi, Max. Operating Pressure Differential Water 25 psi, Indoor, Outdoor, Voltage 120V AC, Coefficient of Volume 35, Body Material - Valves Aluminum, Coil Insulation Class F, Seal Material - Valves NBR