The unique, premium carbon water filter removes 95 percent of mercury. It also reduces chlorine (taste and odor) and 96 percent of trace levels of pharmaceuticals to give you clean, great-tasting water while leaving behind beneficial fluoride. Keep track of your filter life with a built-in electronic filter life indicator. Indicator flashes green, yellow or red so you'll always know when it's time for a replacement filter. Water pitcher holds eleven 8 oz. glasses of water. Space-saving design fits easily in a refrigerator and is slim enough to fit easily in most refrigerator doors. Water pitcher filter provides up to 40 gallons of clean water.