The 33-Series is a general-duty on-demand positive displacement pump. It provides reliable performance in high water flow, moderate pressure applications. This 3-chamber diaphragm pump provides up to 3 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 inch (13 millimeter) outlets. This automatic demand water system pump has a built-in pressure switch, which automatically starts and stops when the faucet is opened and closed. They're easy to install, service and winterize.
