The Whale MK5 manual bilge pump is a hand operated bilge pump combining versatile design with high output. The MK5's compact design means it can be on deck, through deck or bulkhead mounted without modification. As a nitrile diaphragm pump, it can be used to pump bilge water, saltwater or diesel.

The bilge pump is constructed from a robust glass filled polypropylene body with a glass filled nylon and acetyl operating lever. Reliability is ensured with non choke valves and a fully enclosed diaphragm. It contains an inspection hatch for quick and easy maintenance of the pump. This pump also features a removable handle.