Filter-Regulator Filter Bowl Material Metal Air Inlet Size 3/8 in Air Inlet Type NPT Maximum Flow Rate 90 cfm Filter Rating 0.3 micron Filter Type Coalescing Maximum Operating Pressure 250 psi Drain Type Manual Pressure Gauge Included No Body Material Aluminum Overall Width 2 1/4 in Series 1500 Adjustment Mechanism Knob Air Outlet Size 3/8 in Air Outlet Type NPT Differential Pressure Indicator Included No Drain Included Yes Drain Part Compatibility 104481