High-speed drum pump for light oils up to 40 weight. Designed for dispensing and transferring liquids out of 55 gallon drums. Constructed of aluminum for application specific chemical resistance. Not recommended for: ammonium chloride, aqua regia, bromine water, calcium chloride, chloracetie acid, chlorine water, ferric chloride, ferrous chloride, freon 12, hydrobrmic acid, hydrofluoric acid, sodium hydroxide, stannic chloride, and sulfuric acid. 11.8 oz displacement per stroke.