UNIVERSAL FIT KEURIG AND BREVILLE - For use with all Keurig 1.0, Keurig 2.0 and Breville coffee machine. Including all older Keurig coffee makers manufactured after 2007: Kuerig Single Cup Reservoir Brewing, K-Duo, Elite, Classic, Ultra, Special Edition, Ultimate, Platinum, K40, K45, K50, K55, K70, K200, K250, K400, K475, K575, BWF100 and more. (FULL LIST SEE BELOW) - NOTE: WILL NOT FIT CUISINART. FINE CHARCOAL FILTRATION - Premium organic activated charcoal granules are designed to increase the exposure to water and maximize the efficiency of filtration and purification. water filters replacements are made of high quality charcoal that purify the faucet waters from harmful contaminants. MICRO-MESH MATERIAL - Precise design of cartridge micro-mesh material prevents activate charcoal of escaping and clogging Keurig coffee maker. IMPROVES COFFEE TASTE - Activated charcoal is specifically made to improve beverage drinking taste by removing impurities such as calcium, chlorine, sediment and other odors creating a cleaner pure irresistible best-tasting coffee while retaining all the necessary minerals for the body. EASY TO REPLACE: Hassle-free and convenient to replace and start to enjoy a fresh TASTY cup of coffee. Color: White Material: fiber + activated carbon + resin Size: 5.5*3.2*3.4cm Package Contents: 6 * coffee machine replacement core Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.