Filter/Regulator Filter Bowl Material Plastic Air Inlet Size 1/2 in Air Inlet Type NPT Maximum Flow Rate 200 scfm Filter Rating 5 micron Filter Type Particulate Maximum Operating Pressure 150 psig Drain Type Manual Pressure Gauge Included Yes Body Material Aluminum Overall Width 4 1/4 in Series 28 Adjustment Mechanism Knob Adjustment Mechanism Material Acetal Air Outlet Size 1/2 in Air Outlet Type NPT Drain Included Yes Drain Part Compatibility GRP-96-642