ZeroWater filters out 99.6% of all dissolved solids for the purest tasting water. Rather than filtering with a conventional 2-stage system, ZeroWater premium 5-Stage filtration process filters out virtually all dissolved solids from your tap water including salts, lead, chemicals, fluoride, minerals and runoff. This process removes suspended solids such as dust and rust that may make water appear cloudy. It then removes organic contaminants including pesticides, herbicides, Mercury, Chlorine, Chloramine, and stops bacteria from growing. Finally, it filters out metals, nonmetals and radiological contaminants. ZeroWater is the only pour-through water filtration system Certified by the NSF for the reduction of both lead & chromium and other heavy metals, and exceeds the FDAs definition of purified bottled water. Filter life can vary depending on water quality. Get More Out of Your Water.