Whale BP3740 Gusher 10 Mk3 Manual Bilge Pump, Thru-Deck/Bulkhead, up to 17 GPM Flow Rate, 1 ½-Inch Hose Connections, for Boats over 40 Feet

Proven and popular pump has robust design to stand up to the most demanding marine environments and conditions Designed for bilge or holding tank pump-out Offers great versatility regarding where and in what position it is mounted, including through-deck or through-bulkhead High-flow non-choke valves for consistently sure pumping, and there?s no filter to block flow or to require cleaning Intended for use on a boat 40 feet long or longer Features rugged, durable LM6 diecast alloy construction, a sturdy metal pump lever, and an easy to grip ball handle