Compatibility These charcoal water filters fit all K 1.0 and 2.0 models, as well as Breville and Ninja DualBrew coffee machines. They also work with a wide range of older K models manufactured after 2007, including Single Cup Reservoir Brewing, K-Duo, Elite, Classic, Ultra, Special Edition, Ultimate, Platinum, K Supreme, K Slim, K-Mini, K-Express, K40, K45, K50, K55, K70, K200, K250, K400, K475, K575, BWF100, and more. Not compatible with Cuisinart coffee makers. Filtration quality Premium fine charcoal filtration with organic activated charcoal granules to maximize water exposure and filtration efficiency. These filters remove harmful contaminants from tap water for a cleaner brewing process. Micro-mesh Advanced micro-mesh material prevents activated charcoal from escaping and clogging your coffee maker. This design ensures a smooth and uninterrupted flow of water through the filter. Taste improvement The activated charcoal removes impurities such as calcium, chlorine, sediment, and odors from water. By purifying the water, these filters enhance the flavor and aroma of your coffee while retaining essential minerals. Use scenarios - Daily use across K series and compatible Breville and Ninja machines for cleaner water with every brew - In homes with hard water or chlorine taste to improve cup quality - For coffee enthusiasts seeking a purer, more consistent flavor without sacrificing mineral content