The 31-Series is a continuous-duty, on-demand positive displacement pump offering dependable performance for moderate water flow and high-pressure applications. With up to 1.8 gallons per minute capacity and the ability to self-prime up to 6 vertical feet, this 3-chamber diaphragm pump can even function with no water present without sustaining damage. Additionally, it features multi outlet ports for 1-2 3/8” (10 mm) connections at one time, as well as a built-in pressure switch that turns the pump on or off automatically as the fixture is used. Installing, servicing, and winterizing these pumps are straightforward tasks.
