Regulator, Air Inlet Size 1/2 in, Air Inlet Type NPT, Maximum Flow Rate 185 scfm, Maximum Operating Pressure 300 psig, Maximum Operating Temperature 150 Degrees F, Adjustment Mechanism Knob, Body Material Zinc, Overall Width 3 3/8 in, Series Wilkerson, Air Outlet Size 1/2 in, Air Outlet Type NPT, For Fluid Type Air, For Substance Type Air, Includes Friction Lock Knob, Panel Mount Nut