ZeroWater’s 5-stage filtration technology removes 2x the TDS versus leading competitors. The 5-stage filter transforms your tap water into delicious, TDS-free drinking water. Get more out of your water with ZeroWater’s 5- Stage Water Filtration. 5-Stage Filtration: Stage 1 – Removes suspended solids such as dust and rust that make your water appear cloudy. Stage 2 – Removes additional suspended solids. Stage 3 – Removes organic contaminants; pesticides, herbicides, Mercury, Chlorine, Chloramine, and stops bacteria from growing. Stage 4 – Removes inorganic compounds i.e. metals, nonmetals and radiological contaminants. Stage 5 – Removes remaining suspended solids, holds the resin in place. What is TDS: Total Dissolved Solids (TDS) refer to minerals, salts, metals including lead, chemicals, fluoride and runoff polluting your drinking water. ZeroWater Technology is the only water filtration system to remove 99% of TDS, equivalent to TDS in purified bottled water. Get more out of your water with ZeroWater’s Premium 5-Stage Water Filtration. Features: Fits all ZeroWater Pitchers and Dispensers Brand: ZeroWater Manufacturer: ZeroWater Assembled Product Dimensions (L x W x H): 5.00 x 5.00 x 5.00 Inches