4ZK74-A Filter-Regulator, Filter Bowl Material Polycarbonate, Air Inlet Size 1/8 in, Air Inlet Type NPT, Maximum Flow Rate 13 cfm, Filter Rating 5 micron, Filter Type Particulate, Maximum Operating Pressure 150 psi, Drain Type Manual, Pressure Gauge Included No, Body Material Zinc, Overall Width 1 5/8 in, Adjustment Location Top, Adjustment Mechanism Knob, Adjustment Mechanism Material Reinforced Nylon, Air Flow Direction Left to Right, Air Inlet Gender Female, Air Outlet Gender Female