1/8" Supply Outside Diameter x 1/8" Exhaust Outside Diameter, KZH Box with Built in Silencer, High Vacuum, Vacuum Ejector, 24 Litres per Minute at 4.5 bar, Air Consumption 46 Litres per Minute, Maximum Vacuum Pressure 88 Kilopascal, Supply Pressure 4.5 bar, FT Pro