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 5-55 gallon pails/drums 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.