Needle Valve Directions Controlled 2 Valve Inlet Port 1/4 in NPT Valve Outlet Port 1/4 in NPT Valve Max Pressure Rating 200 psi Max CFM - Valves 28 cfm Calibrated Adjustment Knob Composite Body Zinc Plated Pipe Port Inserts Length 1 29/32 in Width 15/16 in Height 2 53/64 in Pneumatic Valves Product Group Flow Control Valve