Graco 647040 Husky 1050 air-operated double diaphragm pump, aluminium, 1 in. NPT, aluminum center section, G.E.T. (Graco Engineered Thermoplastic) seats, G.E.T. (Graco Engineered Thermoplastic) balls, G.E.T. (Graco Engineered Thermoplastic) diaphragm