This Whale Gusher Galley MK3 Pump makes it easy to pump a large volume of freshwater from a boat deck when you activate the pump using the left-side foot pedal. This manual pump will move up to 4 gallons (15 liters) of water per minute via its multi-directional inlet and outlet hose connections. The foot pedal operates with a smooth, easy, double action so it activates the pump on both the up and down strokes. The pump self primes and can be operated dry without causing damage. It offers hands-free operation so you can handle hoses or other equipment while pumping. The durable pump has a single inlet and one outlet, and is designed for use on boats up to 80 feet long (24m). Whale designs and manufactures reliable marine water system products which are easy to install and use; providing boaters with hot and cold water, waste management and durable bilge pumps for peace of mind.