Rule 25D Submersible Bilge Pump, 500 Gallon per Hour, 12 Volt DC, Non-Automatic,Red/White/Blue More pumping capacity and more exclusive design features than any comparable competitive pump at a lower cost 3/4'' (19mm) discharge outlet hose barb discharge outlet, 12 Volts DC, limited 3 year warranty Silent and vibrationless operation Compact, efficient, long-life motors, able to run dry for short periods Stainless steel shaft, completely submersible, rust and corrosion protection 3 Year Warranty