ZeroWater\'s first layer of filtration, activated carbon and oxidation reduction alloy removes the chlorine taste you are accustomed to with tap water. The Ion Exchange stage removes virtually all dissolved solids that may be left over from public water systems or even leached into your water from piping such as Aluminium, Lead, Zinc, Nitrate and more. Three additional stages are included to remove other impurities and to ensure your water receives the appropriate amount of treatment time to deliver a 000 reading on your laboratory-grade Total Dissolved Solids meter included.This item is delivered direct to you from one of our suppliers, please see our Terms & Conditions for details.