1. These replacement filters are designed for all Keurig brand coffee machines that require a water filter manufactured after 2007. removal of impurities that affect taste and quality (chlorine, odor, calcium, etc.); 2. Mini mesh material, make sure the charcoal stays in the filter and won't clog your Keurig coffee maker; 3. Improve beverage flavor, use activated carbon filter to remove impurities, calcium, chlorine and odor to create beverages with the best taste; 4. Fine-grained charcoal, finer charcoal particles increase the surface area in contact with water and maximize effective filtration. ; 5. Suitable for Keurig 2.0 brewer, Elite B40, Classic 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. Applies to (but not limited to) all of these Keurig models. Name: Keurig coffee filter Performance: soften water, remove chlorine, heavy metals and other harmful substances in water Application: coffee machine, water dispenser, sports bottle, etc. Colour:White Material:Fiber + coconut shell activated carbon Size:55 x 32 x 34mm Package Contents: 12 x Coffee filter 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.