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Rule 500 GPH Rule-MateŽ, Automated 12v
Cat. No. RULE RM500
Weight 4 lbs

The Rule 500 offers many design features while keeping size and cost to a minimum. Especially popular on smaller craft, Rule 500 pumps are unmatched in pumping power and longevity. 3/4'' (19mm) discharge outlet. 12 Volts DC unless noted.

The Rule-Mate series of automated bilge pumps feature a pump and a non-mercury float switch in a single, compact housing. When the float rises, the pump turns on. There is no on/off cycling and therefore, no power use until the pump comes on. The pump remains on until the float drops and the pump senses no load against the impeller. Thoughtfully designed, Rule-Mate® pumps can be used in practically all bilge pumping applications.


Flow Rate
500 gph 1893 lph

Port Type
3/4" (19mm) Hose barb

12 or 24 Vdc


12 Vdc

Amp Draw
1.9 amp

Fuse Size
2.5 amp

4 inches  101.6 mm

5 Inches  127 mm

13 oz  370 g


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