Brita Faucet Mount System filters out odors and impurities for healthier, great tasting filtered water on tap. From the world's #1 brand in water filtration, this Elite Advanced faucet mount uses Advanced Brita Carbon-block technology, is certified to reduce chlorine (taste and odor) and reduces 60+ contaminants including 99% of lead. This Brita filter system replaces 1,800 bottles a year. This certified Brita water filter system has three spray options and includes a filter indicator to tell when it's time to change, approximately three times a year. Does not fit pull-out or spray style faucets.