Specifications: Designed to work with for Keurig coffee machine after 2007. All of the nuances of a great cup of coffee start with quality filtered water. The replacement bacteriostatic charcoal filter can remove minerals, calcium, select pesticides, chlorine tastes and odors, to enhance your brewing experience. The best filters extend the life of your coffee machine. Replacement water filters can protect your expensive coffee makers, and you, from harsh chemical and bacterial build up. Item Name: Coffee Machine Filter Quantity: 6/12Pcs Material: Fiber, Activated Charcoal Suitable: for Keurig Coffee Machine Size: 55mm x 32mm x 34mm/2.17" x 1.26" x 1.34" (Approx.) Notes: 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. Package Includes: 6/12 x Coffee Machine Filters(Not Included Coffee Machine)