The activated carbon bag can remove impurities, calcium, chlorine and odors to create the tastiest drinks. These replacement filters are specifically designed for all coffee makers compatible with Keurig that require water filters made after 2007. Features:Removes impurities (chlorine, odors, calcium and others) that interfere with taste and quality.Ensures that the charcoal remains in the filter and does not obstruct your coffee machine. The finer granules of coal increase the surface area's exposure to water and maximize effective filtration.Compatible with Keurig 2.0 brewer, E-lite B40, Cassic B44, Ultra B50, Special Edition B60, Ultimate B66, Plantinum B70, Plantinum K79 Plus, Officepro B145, B140, B145, B40, B45 Elite, B60, B68, B70, B75, B79, B80, K145, K155, K200, K350, K40, K45 Elite, K500, K60, K65, K66, K75.Works with (but not limited to) all of these models.Applicable for coffee machine, water dispenser, sports bottle, etc.Specifications:Material: Activated Carbon and Non-wovenQuantity: 6Pcs or SetItem Size: 55 34 32mm or 1.34 1.34 1.26inPackage Weight: 120g or 4.23ouncesPackage Size: 160 120 40mm or 6.3 4.72 1.57inPacking List:6 Coffee Machine Filters Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.