Enjoy great-tasting water with the latest pitcher filter technology. The ZeroWater ZR-001 filtration system combines five sophisticated technologies that work together to remove virtually all dissolved solids from your tap water. 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 aluminum, lead, zinc, nitrate and more. Three additional stages are included to remove other impurities, with the appropriate treatment time to deliver a "000" reading on your Total Dissolved Solids (TDS) meter. Stage 1: Activated carbon infused micron cloth. Stage 2: Multi-layer system using activated carbon and oxidation reduction alloy. Stage 3: Distributor that maximizes contact time. Stage 4: Comprehensive Ion Exchange array. Stage 5: Non-woven membrane to remove fine particles.