Conveniently packaged 3 stage water purifier replacement cartridges, designed for use in aquatics, filtering tap water for koi and similar uses.
5 micron moulded polypropylene moulded filter and will remove dirt, sand, iron as well as other particulates.
Granular Activated Carbon (GAC) filter, which removes chlorine and dissolved organic contaminants.
Block carbon filter (CTO) is used in stage 3, and will take out any further contaminants from the water.
Available for 10" and 20" systems.