Stenner Econ FP Series pumps are manufactured for applications such as pH adjustment and light-duty water treatment. The FP Series pumps are programmable to accept an input signal from any control equipment that responds to flow. Utilized in indoor and/or outdoor applications, the FP Series pumps are perfect for injecting nutrients into drinking water or disinfecting your home's water lines. All Stenner pumps have a 3-point roller design which prevents back flow and siphoning, eliminating the need for a check valve. The peristaltic design of the Econ FP Series allows for the pump to run dry without causing damage to itself.