Professional Diesel Exhaust Fluid Rotary Barrel Pump, Ideal For Diesel Exhaust Fluid, Resistant To Gasoline, Diesel, Machine Oil, Alcohol, Acidic Fluids Much More, Fits All 555 Gallon PailsDrums With A Standard Bung Fitting, Hand Operated Rotary Lever Action Delivers Approximate , 7 Gallons Per 100 Revolutions, Polypropylene Body With PTFE Vanes Aids In Resistance To Harsh Chemicals, 1 Way Check Valve To Aid In The Prevention Of Product Contamination