Filteristic Brewer Replacement Charcoal Water Filters - Set Of Six - Use With Kuerig Espresso Machine And Coffee Maker 6 carbon Water Filters - each filter is filled up with activated charcoal with a non-woven cover to maintain premium quality, individually sealed and packed together in one retail box For Best Results: simply place a cartridge into the water filter assembly and insert into your water reservoir; replace Every 60 Days This is a set of 6 activated charcoal filters created for all Keurig machines. They are a universal fit and work with all Keurig 2.0 machines, and all Keurig Single Cup Reservoir Brewing Systems purchased after August 2007: Elite, Classic, Ultra, Special Edition, Ultimate and Platinum. Not compatible with the Mini Brewing System, Mini Plus Brewing System, the B145 OfficePRO Brewing System, or the Rivo System. Filteristic Water filter replacements are FDA Approved Better water- Reduces the taste of chlorine and odor. Reduces the copper and mercury found in tap water for cleaner and great-tasting water. Better health- Drinking coffee with filtered water helps keep you hydrated, maintain your energy and all around feel better. Cost-Effective- Save More, Work Better! Elite Classic Ultra Special Edition Ultimate Platinum Mini Brewing System Mini Plus Brewing System B145 OfficePRO Brewing System Rivo System.