Brita On Tap Faucet Water Filter System Filters cut the odor & impurities found in some tap waters to deliver great-tasting water. These filters are BPA-free & are designed to last for up to four months or 100 gallons. Handy filter indicator lets you know that the filter is working & reminds you when a filter needs replacement. One filter can replace up to 750 standard, 16.9 oz. plastic water bottles, reducing waste & cost. Reduce 99 percent lead, chlorine (taste & odor) & asbestos contaminants & get great-tasting drinking water every time you turn on the faucet. Brita On Tap Faucet Water Filter Systems fit standard faucets only. These units do not fit pull-out or spray style faucets. They are ideal for use in offices, schools, daycare centers, restaurants, hotels & other commercial facilities.