Rule Automatic Bilge-Pump 500 - 3700 GPH 12v
Rule Pumps 12 Volt DC Automatic Bilge Pumps 500 GPH - 2000 GPH feature computerized operation on the principle of impeller resistance. Float switches are not required. 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 Bilge Pumps - Identifying the 3 Wires
Rule Automatic Bilge Pump 500 GPH 3/4" Port 12v
Part # 25S
Rule Automatic Bilge Pump 800 GPH 3/4" Port 12v
Part # 20RS
Automatic Round 12v
Rule Automatic bilge pumps eliminate the need for a separate float switch to activate the pump. Once power is supplied, starting and stopping is completely automatic. The pump checks for water every 2 + minutes by turning on for a second and measuring load against the impeller. If water is present, the pump remains on until the water is removed. Thereafter the pump resumes its 2-1/2 minute check cycle. The automatic pumps feature two positive leads: an automatic (brown) and a manual override (brown with a white stripe).
Rule Automatic Bilge Pump 1500 GPH, 1-1/8" port, 12v
Part # 51S
Rule Automatic Bilge Pump 2000 GPH, 1-1/8" port, 12v
Part # 53S
Rule Automatic Bilge Pump 3700 GPH 1-1/2" Port 12v
Part # 55S
Heavy duty construction for both commercial and pleasure boat use; known for trouble free operation and reliability. 1-1/2 (38mm) discharge outlet.
Automatic Marine Bilge Pump, 1100 GPH, 12V - Rule
Part # 27S
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