PUR is the #1 selling brand in faucet filtration (Based on Nielsen sales data for the 52 weeks ending 07/03/21.). PUR faucet filtration systems are certified to reduce 70 contaminants, including lead, mercury, and certain pesticides, as well as reducing chlorine - taste and odor (PUR does not filter microbes.). Plus, PUR's Mineral Core technology filters water over natural minerals for a crisp, refreshing taste. PUR faucet filter replacements are certified to reduce lead and 10x more contaminants than Brita's leading pitcher filter (Versus best-selling Brita pitcher filter OB03. Brita is a trademark of Brita LP. PUR does not filter microbes.). PUR has been developing innovative technologies for superior water filtration for over 30 years.