Air Operated Drum Pump Pump Package Type Basic Pump without Discharge Hose Air Inlet Size 1/4 in FNPT Air Outlet Size 1/8 in For Container Size 275 gal For Container Type Tote Air Consumption 7 cfm Max Flow Rate 6 gpm Max Oil Flow 6 gpm Discharge Connection Type FNPT Discharge Tube Outlet ID 1/2 in Discharge Tube Outlet OD 13/16 in Min Air Pressure 20 psi Max Air Pressure 120 psi Ratio 3.5 1 Max Outlet Pressure 500 psi Min Fluid Temp 30 Degrees F