The Kinetico Greensand Filter uses a unique, patented clean water regeneration process for a virtually unlimited supply of fresh, odor-free water. It uses an oxidation/filtration process to reduce iron, manganese, hydrogen sulfide and arsenic, improving your water’s taste and smell, and protecting your plumbing. It’s metered, on-demand service does away with guesswork, odor breakthrough, and water and regenerate waste.