The boat water filter uses a porous membrane to remove impurities from the water that passes through it. NauticExpo offers various types of filter: fresh water, graywater, bilge water, etc.
The water filter is used to obtain cleaner water containing less residual matter.
Filter function depends on design and method of filtration. In some, the water is filtered more than once.
Choice will depend on filtration method, filter size, maintenance requirements and energy consumption, etc.