When water enters the bilge and reaches a certain height (2-3/4 inches) a sensor turns the pump on. After the water is pumped out, another sensor shuts the pump off. The sensor’s unique “field effect” technology will only recognize water. If a 100% concentration of oil is detected the pump will not activate. This is not a zero discharge prevention system. The result is the most technically advanced bilge pump available in the marketplace. Rule Mate II series are available in 500, 750 and 1100. Rule has been building bilge pumps for 30 years. The pumps are preferred by yachtsmen and commercial fishermen the world over. Features and Benefits • All-in-one pump & switch - No float switch required • Pump turns on when water level rises & shuts off when water is removed • Snap-off strainer for easy cleaning • Anti-Fouling Impeller • Limited three year warranty
