This Zodi self-contained portable water pump is ideal as a backup bilge pump for any boat, especially inflatables, jet skis and kayaks, among others. You can also use it to enjoy a comfortable shower using any water souce and the included snap-in showerhead. Just add 4 "D" cell batteries and place the compact, powerful pump in any water source. A great item for emergencies, smaller boats or as a camp shower without lifting heavy water bags. 8 foot shower hose.