MAXION® Filter Technology. Certified to reduce over 70 contaminants including 99% of Lead, 96% of Mercury, 92% of certain pesticides. More than any other brand.* Includes one MineralClear® Filter, filtering water over natural minerals for crisp, refreshing taste. Reduces Chlorine for great taste. The CleanSensor™ Monitor visibly indicates filter status. Easy, tool-free installation. Compatible with most faucets. Will not work with pull-out or hand-held faucets. Filters 100 gallons, or up to 3 months.