Filter-Regulator, Particles/Water Removal, Max. Incoming Pressure - Air Treatment: 250 psiFilter Regulator, Filter Bowl Material Metal, Air Inlet Size 1 2 in, Air Inlet Type NPT, Maximum Flow Rate 164 cfm, Filter Rating 5 micron, Filter Type Particulate, Maximum Operating Pressure 250 psi, Drain Type Manual, Pressure Gauge Included No, Body Material Aluminum, Overall Width 2 3 8 in, Series B18, Adjustment Mechanism Knob, Adjustment Mechanism Material Acetal, Air Outlet Size 1 2 in, Air Outlet Type NPT, Differential Pressure Indicator