Bilge Pumps
Rule 12 Volt DC Automatic Bilge Pumps
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Click to enlargepadRule 12 Volt DC Automatic Bilge Pumps 500 GPH - 2000 GPH

Rule 12 volt DC automatic bilge pumps feature computerized operation on the principle of impeller resistance. Float switches are not required.


IN STOCK - Ships the next business day
  • The pump will turn on every 2-1/2 minutes to sense for water.
  • If water is present, the pump will sense resistance and continue
    to run until all the water is removed.
  • Thereafter, it will check for water every 2-1/2 minutes.
  • Power use in the checking mode is minimal.
Rule Pumps 12 Volt DC Automatic Submersible Pump Data
Model GPH Amps @12v Amps @13.6v Fuse Size Height Width Weight (lbs) Hose Diameter
25S 500 1.9 2.5 2.5 4” 2-3/8” 1 3/4”
27S 1100 3.3 5.0 6 4-1/2” 2-3/8” 1 1-1/8”
53S 2000 8.4 12.0 15 7-3/4" 4-3/4” 4 1-1/8”




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Rule Pumps Automatic 12 Volt DC Bilge Pump, 500 GPH # 25S (C)Rule Pumps Automatic 12 Volt DC Bilge Pump, 500 GPH # 25S (C)padRule Pumps Fully Automatic & submersible 500 GPH 12 volt DC bilge pump is used by leading boatbuilders worldwide. It features an easy clean snap lock strainer, silent and vibrationless operation, anti-airlock protection, compact, efficient long life motor, marine grade blocked wiring, ignition protection, no burn-out when run dry.
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25SpadList: $71.00padDiscounted Price $52.00pad
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Rule Pumps Automatic 12 Volt DC Bilge Pump, 1100 GPH # 27S (C)Rule Pumps Automatic 12 Volt DC Bilge Pump, 1100 GPH # 27S (C)padRule Pumps 27S, Automatic 1100 GPH fully submersible 12 volt DC bilge pump offers impressive pumping power for its size and cost. Competitive models in this pumping range are much larger and far more expensive. It features an easy clean snap lock strainer, silent and vibrationless operation, anti-airlock protection, compact, efficient long life motor, marine grade blocked wiring, ignition protection, no burn-out when run dry and rust and corrosion protection
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27SpadList: $107.00padDiscounted Price $78.00pad
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Rule Pumps Automatic 12 Volt DC Bilge Pump, 2000 GPH # 53S (C)Rule Pumps Automatic 12 Volt DC Bilge Pump, 2000 GPH # 53S (C)padRule Pumps 53S, Automatic 2000 GPH fully submersible 12 volt DC bilge pump is used by leading boatbuilders worldwide. Engineered to commercial standards. It features an easy clean snap lock strainer, silent and vibrationless operation, anti-airlock protection, compact, efficient long life motor, marine grade blocked wiring, ignition protection, no burn-out when run dry and rust and corrosion protection
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53SpadList: $234.00padDiscounted Price $171.00pad