Specifications Model: QBY-15PP Body Material: Polypropylene Inlet Port: 1/2 inch (12.7 mm) Outlet Port: 1/2 inch (12.7 mm) Air Inlet Size: FNPT 1/4 inch (6.35 mm) Max Flow Rate: 2.5 GPM Suction: 0-5 m (0-16.4 ft) Max Suspended Solids: 2.38 mm (3/32 inch) Max Head: 69 m (226.4 ft) Max PSI: 80 psi Temp. Rating: -20 ~ 150 Self-Priming Dry: 3 m (10 ft) Self-Priming Wet: 4.6 m (15 ft) Ball Material: Santoprene(R) Package Content 1 x Air-Operated Double Diaphragm Pump 1 x Product Manual