To confidently and continuously enjoy, cleaner, better tasting drinking water, remember to change your PUR Faucet Mount Water Filter (RF3375) every 3 months or after 100 gallons of use. As the #1 brand in faucet filtration,*** the PUR Faucet Mount Replacement Water Filter reduces 10x more chemical physical substances than Brita's leading pitcher filter* through its powerful, 2-in-1 genuine PUR filtration technology. It has also been rigorously tested and certified by WQA and NSF as the only filter to reduce 70 chemical physical substances, including lead, microplastics, chlorine and mercury.** Be cautious of 'off-brand' water filters. They are not tested nor certified to filter the same as Genuine PUR Faucet Mount Water Filters in PUR and Beautiful by PUR systems. Genuine PUR water filters are the only water filters certified to reduce chemical physical substances when used with your PUR and Beautiful by PUR Faucet Mount system. At PUR, we believe that everyone deserves cleaner, better-tasting drinking water. That's why we've been developing innovative, superior water filtration technologies for over 35 years. Disclaimers: *Versus best-selling Brita pitcher filter OB03. Brita is a trademark of Brita LP. ** Like other leading brands, PUR does not filter microbes. As of 7/1/23 Brita and ZeroWater were not certified to filter microbes. Brita is a trademark of Brita LP. ZeroWater is a trademark of Zero Technologies, LLC. ***Based on Nielsen sales data for the 52 weeks ending 7/1/23. x Made in the USA 6-MONTH VALUE OF PUR FAUCET MOUNT WATER FILTERS THAT ARE CERTIFIED to provide cleaner, safer, drinking water from your PUR or Beautiful by PUR Faucet Mount Water Filtration System. Compatible does not mean comparable. Other brands are not certified to work with your PUR or Beautiful by PUR Faucet Mount Water Filter System. 2-IN-1 POWERFUL WATER FILTRATION. PUR is the only brand certified by WQA and NSF to reduce 70 chemical physical substances, including lead and microplastics that are commonly found in tap water. LONG LASTING -- each PUR Faucet Mount Water Replacement Filter is engineered for up to 100 gallons of cleaner, safer water filtration or 3-months of regular use. HASSLE-FREE, EASY INSTALLATION in all PUR or Beautiful by PUR Faucet Mount Systems. No tools needed. THE #1 SELLING BRAND IN FAUCET FILTRATION*** -- PUR has been trusted for over 35 years because of its rigorous water filtration standards and certifications.