Rule 500GPH Electronic Sensing Bilge Pump - 12V [25SA] Brand_Polyform U.S. Their easy installation and attractive

Their easy installation and attractive appearance will make your days on the water more productive

Adjustable back lit display in feet

Shipping Weight: 2 lbs 10 oz (1

Soft-Mate Beverage Holder

Provides detailed coastal coverage of the U

Rule 500GPH Electronic Sensing Bilge Pump - 12V [25SA] Brand_Polyform U.S. Their easy installation and attractive500GPH Electronic Sensing Bilge Pump 12V In the next generation sensing bilge pumps, the 500GPH S series pump works on the principle of impeller resistance. The pump will turn on every 2 1 2 minutes for about one second to sense for water. If water is present, the pump will sense resistance and continue to run until all 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"!!!