When water enters the bilge and reaches 2-3/4″ (7cm), a sensor turns on the pump. After the water is pumped out, another sensor shuts off the pump. The Rule-Mate II series is available in 500, 800, 1100, 1500 and 2000 GPH models. These pumps feature an all-in-one pump and switch, which means no float switch is required. They also include a snap-off strainer for easy cleaning, anti-fouling impeller, and limited three-year warranty. Rule-Mate pumps have been chosen by many of the world’s leading boat builders as a compact and reliable bilge system.
Rule’s 500 G.P.H. Pumps offer increased capacity in keeping with it’s 3/4″ (19mm) discharge outlet. 12 Volts DC unless noted.