Keep tap water healthier and tasting better longer with Brita Longlast Pitcher Replacement Filters. Made with pleated filter technology for 3X longer life compared to 40 gallon filters. Longlast replacement filters reduce lead, asbestos, and cadmium impurities that can adversely affect your health over time (substances reduced may not be in all users' water). Change the Longlast filters every 120 gallons, about every 6 months for the average family, for best performance. The pull top cap on these filters makes insertion and removal easy. With activated carbon to reduce chlorine taste and odor, these filters deliver great-tasting water and maintain a healthy level of fluoride, an additive in water (applies to fluoridated municipal tap water). The fibrous matrix in the filter holds active ingredients in place so no black flecks appear in your water. One LongLast Filter can replace 900 standard 16.9 ounce water bottles. Usage Directions: Change your filter with just a few simple steps. Wash your hands before unwrapping the filter. Insert filter into reservoir. Add cold tap water. Discard your first 3 pitchers of filter water, or use this water for plants. Fill up your pitcher and enjoy great-tasting water. Replace the water filter every 120 gallons (about 6 months for the average household).