Whale Standard Galley pump is a simple, compact, quiet and low cost pump, providing an inexpensive way to update existing manual systems. The Whale GP1002 submersible pump can be dropped into a tank to pump-out the contents. The pump is self venting to eliminate air locking, and is ideal for one, two or three hot / cold mixer faucets. It features a quiet, low power consumption 12V motor. Suitable for pumping fresh water or salt water via 10mm (3/8") or 13mm (1/2") ID hose. For a 1/2" hose connection fit the adaptor by pressing it on firmly. Note: Once fitted adaptors cannot be removed.