12V Diaphragm pump, W/no demand Switch, 50 psi internal bypass, max flow rate 1.6 gpm, Diaphragm and check valve assemble are made with Viton Material. Self-Pr iming Even When Dry Dry vertical lift from 2.5ft (0.75m) up to an outstanding 27.9ft (8.5m). Can run dr y without damage • ITT Flojet diaphragm pumps can run dry for extended periods with no damage even when the liquid supply is exhausted • Compatible with a wide range of chemicals • Seal-less design (no shaft seal, so less leak issues) Compact Size and Lightweight • Highest flow rates for their size • Plug-in ports for easy installation and servicing • ITT Flojet pumps can be mounted easily anywhere with functional mounting platforms and simple connections - fit it anywhere and plumb up Easy, Low-Cost and Convenient Servicing • Modular design • Low cost, low maintenance design means a trouble free service life • Spare parts and accessories are readily available and easy to install