4 x High-Capacity 5 Micron 10" Polypropylene Sediment Filters (FP15) -- Removes dust, particles, and rust. Replace about every 6 months. 4 x Granular Activated Carbon (GAC) 5 Micron 10" Filters (FG15) -- Gets rid of unpleasant chlorine, tastes and odors, cloudiness and colors. Tested by independent third-party to meet NSF/ANSI Standard. 4 x Carbon Block (CTO) 5 Micron 10" Filters (FC15) -- Removes any residual chlorine, tastes & odors, compounding the pre-filters' efficiency and extending the RO membrane's life. 1 x High Rejection .0001 Micron Reverse Osmosis Membrane (MC1) -- The heart of the RO system. Produces drinking water at a rate of 100 gallons per day. Replace about every 2-3 years. 2 x Total Polishing Inline Post Carbon Filters (FT15) -- Removes any possible residual tastes and odors from the tank. Replace about every 12 months. All filters are tested by independent third-party to meet NSF/ANSI Standard.
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