The OEM TOOLS Rotary Drum Pump is a hand-operated pump constructed with a polypropylene body, Ryton (PPS polyphenylene sulfide) rotor, and vanes for resistance to chemicals. This hand crank pump is suitable for water-based chemicals in a variety of automotive, industrial, and commercial applications. The plastic rotary pump is also ideal for water-based solutions of acid, alkalis and salt, some organic solvents, water, and all petroleum products. And the hand crank water pump is compatible with most organic acids, solvents, waxes, plating solution, detergents, and water-soluble inorganic chemicals. Our water drum hand pump is capable of transferring material at 10 ounces per stroke (6.5 gallons per minute at 70 revolutions per minute) with temperatures up to 130 degrees Fahrenheit. This rotary water pump fits 15 gallon, 20 gallon, and 55 gallon drums with 1.25" and 2" NPT bung fittings. The rotary manual pump is intended strictly for use in professional and industrial environments, and our 55 gal drum pump is not for use with nitric acid or gasoline. Anyone using this 55 gallon barrel pump must determine if the plastic rotary drum pump is compatible with the material that is being pumped.