Filter-Regulator Filter Bowl Material Metal Air Inlet Size 1 in Air Inlet Type NPT Maximum Flow Rate 250 cfm Filter Rating 5 micron Maximum Operating Pressure 250 psi Drain Type Manual Pressure Gauge Included Yes Body Material Aluminum Overall Width 3 9/16 in Series 3000 Adjustment Mechanism Knob Air Outlet Size 1 in Air Outlet Type NPT Differential Pressure Indicator Included Yes Drain Included Yes Drain Part Compatibility 104322 Filter Bowl Capacity 5.3 oz