Filter/Regulator/Lubricator Air Inlet Size 1/2 in Air Inlet Type NPT Maximum Flow Rate 110 scfm Maximum Operating Pressure 250 psig Filter Rating 5 micron Filter Bowl Material Aluminum Filter Bowl Capacity 2.87 oz Lubricator Bowl Capacity 6.11 oz Drain Type Automatic Overall Width 6 1/8 in Series 28 Adjustment Mechanism Knob Air Outlet Size 1/2 in Air Outlet Type NPT Body Material Zinc Drain Included Yes Filter Bowl Guard Included Yes Filter Element Material Polyethylene