Designed, engineered and assembled in the USA, this 7-stage ROES-PHUV75 water filtration system is made from high caliber components to deliver exceptional contaminant rejection rates and long-lasting, reliable performance. Save money, time, and hassle from buying costly, bottled water and live healthier with ultra-safe pure mineral water that is contaminant free. The high-capacity polypropylene sediment filter removes dust, particles, and rust. Premium extruded carbon blocks get rid of unpleasant chlorine, tastes, odors, cloudiness and colors, VOCs and other common chemicals. High rejection TFC reverse osmosis membrane removes up to 99% of total dissolved solids (TDS) and contaminants. Ultra-Violet (UV) light sterilizes and destroys up to 99.99% of bacteria, viruses and cysts. Advanced coconut shell carbon filter removes any possible residual taste from the tank. PH+ alkaline re-mineralizing calcium filter adds high quality calcium carbonate to increase water alkalinity.