Manual Air Control Valve, Valve Ways and Positions 4-Way/2-Position, Valve Port Size 1/8 in, Connection NPT, Valve Actuator / Return Roller / Spring, Max. CFM - Valves 0.2 cfm, Valve Max. Pressure Rating 150 psi, Valve Temp. Range 32 Degrees to 175 Degrees F, Coefficient of Volume 0.2, Body Material Aluminum, Overall Length 5 in, Overall Height 2 1/4 in, Overall Width 1/2 in, Series Directair 2, Manual Air Control Valve