Rule 500GPH Electronic Sensing Bilge Pump - 12V - 25SA Sierra Marine 4 Stroke Marine Engine Oil All Carver Covers are Made

All Carver Covers are Made in the USA

The clamp is welded to the tube with either a fin or an oval rod for maximum strength

Fills gaps up to

Efficient and quiet operation

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Rule 500GPH Electronic Sensing Bilge Pump - 12V - 25SA Sierra Marine 4 Stroke Marine Engine Oil All Carver Covers are Made500GPH 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"!!!