Corrosion- and rust-resistant Polypropylene Piston Drum Pumps deliver an accurate amount of liquids per stroke. Shaft is sealed to prevent leaking. 5-gal. pail adapter included. Threaded pump fits 2" and -3/4" bungs. Should not be used in heated containers or above 125-DegreeF. For use with light- to medium-viscosity material-water based solutions, detergents, waxes, disinfectants, acids and corrosives.