Rule Pumps RM500A, All-in-one pump & switch (no float switch required), Automatic 500 GPH submersible 12 volt DC bilge pump preferred by yachtsmen and commercial fishermen worldwide. The Rule Mate series of Bilge pumps feature a solid state water sensing technology that eliminates the need for a separate float switch. It features an easy clean snap lock strainer, anti-fouling impeller.

Automatic Operation: 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.(On 2-3/4”; Off 1/2”)

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.

•Amp Draw @ 12.0 Volts: 2
•Amp Draw @ 13.6 Volts: 2.2
•Fuse Size: 3 amps
•Connections: one straight and one angle Hose barb fitting.
•Discharge Opening: 3/4”
•Discharge Finish: Barbed
•Housing Material: ABS
•Strainer Material: ABS
•Impeller Material: Nylon
•Shaft Material: Stainless
•Seal Material: Nitrile/Teflon
•Temperature Limit: 200 ºF
•Fluid Capabilities: Bilge Water
•Typical Life: 1500 hours
•Shut-Off, (0 GPM): 12
•Footprint: 2.75" x 4.5"
•Wire Length: 29"
•Wire Gauge: 16 AWG
•Dimensions: Height: 4.5" Width: 6" Depth: 3.25"
•Weight: 1.4 lbs
•Certifications: ISO 8846, ISO 10133, CE Certified EN50081-1 & EN50082-1, UPC Code 042237-111067

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