The SeaSpray Dockpure water system uses a specially designed 2 stage 10 inch filtration module that incorporates a prefilter to remove suspended debris down to 5 micron followed by a charcoal filter to remove any smells, chlorine and chemicals from water before it reaches your tank.  

Comes complere with standard hose connectors to easily connect to your filler hose.

(note - this is for filtering dock water only - it will not desalinate or purify contaminated water)