SEAFLO 33-Series Diaphragm Water Pump, 115VAC, 3.3 GPMThe SeaFlo 33 Series is our general duty on demand positive displacement pump. It provides reliable performance in high water flow, and moderate pressure applications. This 3 chamber diaphragm pump provides up to 3. 0 gallons per minute and is capable of self priming up to 6 vertical feet, and can run dry without damage. Serves 3 or more 1 2 (13 mm) outlets. This automatic demand water system pump has a built in pressure switch, which automatically