Air Operated Drum Pump Pump Package Type Basic Pump with Discharge Hose Air Inlet Size 1/4 in FNPT For Container Size 55 gal For Container Type Drum Max Flow Rate 14.4 gpm Max Viscosity 200 cps Discharge Tube Outlet ID 1/2 in Discharge Tube Outlet OD 3/4 in Ratio 1 1 Seal Material Polyurethane Power Source Air