Rule 500 GPH Automatic 12v Cat. No. RULE 20SA Weight 4 lbs

$109.25

This next generation water-sensing bilge pump works on the principle of impeller resistance. The pump turns on every 2-1/2 minutes for about one second to sense for water. If water is present, the pump will sense the resistance of the water against the impeller and continue to run until all the water is removed. After that, it will resume checking for water every 2-1/2 minutes. Water is kept in check between 1/8" and 3/8"!, with no float switch required Rule pumps have true electromagnetic suppression (EMC). They have a built-in thermal cell that protects the pump from overheating. • Completely automatic operation with manual override - no float switch • Most compact automatic bilge pump in its class • Submersible • Ignition protected • High efficiency, low amp motor • Stainless-steel shaft • Includes backflow preventer