Filter-Regulator Filter Bowl Material Stainless Steel Air Inlet Size 1/2 in Air Inlet Type NPT Maximum Flow Rate 72 cfm Filter Rating 5 micron Filter Type Particulate Maximum Operating Pressure 300 psi Drain Type Manual Pressure Gauge Included No Body Material Stainless Steel Overall Width 2 1/2 in Series SB2 Adjustment Mechanism Knob Adjustment Mechanism Material Stainless Steel Air Outlet Size 1/2 in Air Outlet Type NPT Drain Included Yes