Graco 647016 Husky 1050 Air-Operated Double Diaphragm Transfer Pump – 1 in. AL/TPE for Water, Antifreeze, and Fuel Transfer.
Pump features a stall-free low pulsation air valve which provides a smooth and rapid changeover. The one-piece center section eliminates leaks and reduces maintenance on Husky pumps when compared to other diaphragm pumps.