Brita Faucet Mount System filters out odors and impurities for healthier, great-tasting filtered water on tap. 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 single-use bottles (16.9 oz) a year. This certified Brita water filter system has 3 spray options and includes a filter indicator to tell when it's time to change, approximately 3 times a year based on average family usage and 100 gallon filter life. It does not fit pull-out or spray-style faucets.