Filter/Regulator/Lubricator Air Inlet Size 3/8 in Air Inlet Type NPT Maximum Flow Rate 68 scfm Maximum Operating Pressure 250 psig Filter Rating 5 micron Filter Bowl Material Aluminum Filter Bowl Capacity 1.72 oz Lubricator Bowl Capacity 4.09 oz Drain Type Automatic Overall Width 7 3/4 in Series 18 Adjustment Mechanism Knob Air Outlet Size 3/8 in Air Outlet Type NPT Body Material Zinc Drain Included Yes Filter Bowl Guard Included Yes Filter Element Material Polyethylene