Filter-Regulator Filter Bowl Material Metal Air Inlet Size 1/2 in Air Inlet Type NPT Maximum Flow Rate 200 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 7/8 in Series B28 Adjustment Mechanism Knob Adjustment Mechanism Material Acetal Air Outlet Size 1/2 in Air Outlet Type NPT Differential Pressure Indicator Included Yes Drain Included Yes