Brita On Tap Faucet Water Filter 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 per 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 per year. Approximate timing based on average family usage and 100 gallon filter life. Refer to system's indicator for actual time to change. Does not fit pull-out or spray style faucets.