Filter/Regulator/Lubricator, Air Inlet Size 1 1/2 in, Air Inlet Type NPT, Maximum Flow Rate 450 cfm, Maximum Operating Pressure 300 psi, Filter Rating 5 micron, Filter Bowl Material Zinc, Filter Bowl Capacity 16 oz, Lubricator Bowl Capacity 16 oz, Drain Type Automatic, Overall Width 16 1/2 in, Series C628, Adjustment Mechanism Nonrising, Air Outlet Size 1 1/2 in, Air Outlet Type NPT, Body Material Zinc, Drain Included Yes, Filter Type Particulate