Filter lasts 4 months (Approximate timing based on average family usage and 100-gallon filter life. Refer to system's indicator for actual time to change) (100 gallons). Removes 99% of lead (The contaminants or other substances removed or reduced by this water treatment device are not necessarily in all users' water). 1-Click Filter Replacement: Fits in all Brita faucet filtration systems. New filter snaps on in one quick step. See user's guide for easy replacement tips. Get to the good stuff - what we filter out. The Brita faucet filtration system reduces the following impurities that may be in your tap water: Heavy Metals: Lead. Taste and Odor: Chlorine. Disinfection By-Products: Total Trihalomethanes (TTHMs). Particulates: Particulate. Industrial Pollutants: Asbestos, benzene, carbon tetrachloride, chlorobenzene, o-Dichlorobenzene, ethylbenzene, styrene, tetrachloroethylene, toluene, trichloroethylene, volatile organic chemicals (VOCs). Pesticides and Herbicides: 2,4-D, alachlor, atrazine, carbofuran, chlordane, endrin, lindane, methoxyclor, simazine, toxaphene. Pharmaceuticals: Estrone, ibuprofen, naproxen, phenytoin. Industrial Chemicals: Bisphenol A (BPA), nonyl phenol. Change Filter as Directed: Filter replacement is essential for product to perform as presented. Model FF-100: Filter lasts for 100 gallons (378 l) (Filter life may vary depending on local water conditions) or 4 months, whichever comes first. Model SAFF-100: Filter lasts for 100 gallons (378 l) (Filter life may vary depending on local water conditions. Keeps a healthy level of fluoride, a water additive that promotes strong teeth (applies to fluoridated municipal tap water). Get More with Brita: With filter reminders tailored to you, we make remembering to change your filter effortless. Visit brita.com/reminders. You even have the opportunity to earn prizes, coupons and more through our loyalty program, Brita Rewards.