This self-priming pump is also chrome-plated. It resists chemical action of noncorrosive liquids. It fits 15, 30 and 55-gallon drums with 2-inch openings and pumps 22-ounces per stroke. Sprayer/Hose/Nozzle Type: Spigot; Sprayer/Nozzle Type: Pump; For Use With: 15-, 30-, 55-Gallon Drums (2-Inch Openings); Material(s): Chrome Plated.