Filter-Regulator, Filter Bowl Material Plastic, Air Inlet Size 3/8 in, Air Inlet Type NPT, Maximum Flow Rate 158 cfm, Filter Rating 5 micron, Filter Type Particulate, Maximum Operating Pressure 150 psi, Drain Type Manual, Pressure Gauge Included Yes, Body Material Aluminum, Overall Width 2 3/8 in, Series B18, Adjustment Mechanism Knob, Adjustment Mechanism Material Acetal, Air Outlet Size 3/8 in, Air Outlet Type NPT, Differential Pressure Indicator Included Yes, Drain Included Yes