Filter-Regulator Filter Bowl Material Polycarbonate with Guard Air Inlet Size 3/8 in Air Inlet Type NPT Maximum Flow Rate 163 cfm Filter Rating 40 micron Filter Type Particulate Maximum Operating Pressure 150 psi Drain Type Manual Pressure Gauge Included No Body Material Aluminum Overall Width 3 1/8 in Series Standard Duty Adjustment Location Top Adjustment Mechanism Knob Adjustment Mechanism Material Reinforced Nylon Air Flow Direction Left to Right Air Inlet Gender Female