Specifications Model: QBY4-50L Type: Air-operated Double diaphragm Diaphragm Material: Nitrile Body Material: Aluminum Alloy Inlet/Outlet Port: 2 inch (50 mm) Air Inlet Size: NPT 1/2 inch (12.7 mm) Max Flow Rate: 75 GPM Max Head: 84 m (275.59 ft) Valve Type: Ball Suction: 0-5 m (0-16.4 ft) Max Suspended Solids: 3 mm (1/8 inch) Average Air Consumption: 38 CFM Self-Priming Dry: 3 m (10 ft) Self-Priming Wet: 4.6 m (15 ft) Package Content 1 x Air-Operated Double Diaphragm Pump 1 x Product Manual