Air Operated Drum Pump, Max. Air Pressure 120 psi, Suction Tube Material Steel, Self-Priming Yes, Explosion Proof No, Discharge Connection Type FNPT, Features An Internal Spring Returns the Piston and Resets it for the Working Stroke, No, Air Outlet Size 1/2 in, Bung Connection Dia. 2 in, Air Consumption 5 cfm, Hose Length Not Applicable, Variable Speed No, Includes Discharge Hose No, Adapter Connection Type FNPT, Includes Suction Tube Yes, Includes Bung Adapter Yes