If you want... High Quality Drinking Water, Clear & Clean Ice Cubes, Delicious Coffee, Tea & Beverages, and Water for Pets & Plants. The REVERSE OSMOSIS semi-permeable membrane rinses contaminants to the drain. High quality, filtered drinking water is produced and conveniently stored in a sealed tank. The lead-free faucet easily delivers an abundant supply of clear, clean, and fresh drinking water to you and your family. Stage 1 5 Micron Sediment Filter: Removes dirt, sediments, sand, and other physical particles Stage 2 Carbon Block: Provides protection to the RO membrane from free chlorine and sediment. Stage 3 2ND Carbon Block: Provides further protection to the membrane from free chlorine and sediment. Stage 4 Reverse Osmosis Membrane: Membrane reduces a high percentage of dissolved inorganics and total dissolved solids. * See below Stage 5 Post Carbon Filter: A final polishing process that enhances and clarifies your drinking water. The Water Quality Association (WQA) Gold Seal represents the most credible and independent testing and validation entity in the water industry. The WQA’s Gold Seal represents quality assurance through comprehensive testing and continuous research and evaluation of water treatment technologies. * Contaminant Reduction: TDS, Barium, Cadmium, Chromium Hexavalent and Trivalent, Radium 226/228, Selenium, Fluoride, Nitrate, Nitrite & Lead