Manual Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Valve Port Size 1/4 in, Connection NPT, Valve Actuator / Return Foot Pedal / Spring, Max. CFM - Valves 26 cfm, Valve Max. Pressure Rating 150 psi, Valve Temp. Range -10 Degrees to 180 Degrees F, Coefficient of Volume 0.7, Overall Length 10 9/32 in, Overall Height 2 in, Overall Width 4 in, Series E, Manual Air Control Valve