Aquasana Countertop Drinking Water Filter System, White Removes over 97% of chlorine and reduces 76 other contaminants - NSF certified to remove lead, pharmaceuticals and more No waste water or harmful contaminants added to your drinking water during the filtration process Retains the healthy minerals like calcium, potassium, and magnesium for the healthiest water Only 11 cents per gallon - 11 times the capacity of the leading gravity-based filter pitcher Easily attaches - no permanent fixtures or installation required. Filtered water right from your tap No plumber required - replacements are a simple twist