Graco Husky 1050 air-operated double diaphragm (AODD) metal pump, part number 647047, with an aluminium fluid section and an aluminium center section with Buna-N seals (CSA), Fluoroelastomer (FKM) seats, Fluoroelastomer (FKM) balls and a Fluoroelastomer (FKM) diaphragm. 1 in. (25.4 mm) NPT(f) fluid inlet and outlet, 1/2 in. NPT(f) air inlet, 3/4 in. NPT(f) air exhaust. Maximum free-flow delivery 50 gpm (189 lpm), 280 cpm, max size pumpable solids 0.125 in (3.175 mm), maximum fluid working pressure 120 psi (8.3 bar), maximum air consumption 67 scfm, weight 23 lb.