Manual Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Valve Port Size 1/4 in, Connection NPT, Valve Actuator / Return Lever / Manual, Max. CFM - Valves 26 cfm, Valve Max. Pressure Rating 140 psi, Valve Temp. Range 15 Degrees to 122 Degrees F, Coefficient of Volume 0.7, Body Material Aluminum, Overall Length 3 7/16 in, Overall Height 1 3/8 in, Overall Width 1 in, Series MaxAir, Manual Air Control Valve