ZeoSand Natural Zeolite Filter Media, is a superior replacement for sand in swimming pool sand filters. By rendering pool water crystal clear and controlling eye-irritating chloramine formation, ZeoSand helps make swimming and other pool activities far more enjoyable. ZeoSand is used for filtration in private and public swimming pools, water parks, aquariums, aquaculture and zoos. It can also be used to help purify municipal water supplies and waste water. A honeycomb-crystal structure and remarkably high surface area make ZeoSand a far better filtration medium than sand. Not only is ZeoSand Natural Zeolite Filter Media highly effective, but its potency can be renewed by means of simple salt-water backwash.