Felji 2-Pack Charcoal Water Filters for Keurig Coffee Machines A Kuerig Charcoal Water Filter replacement removes chlorine, calcium and water impurities when brewing with your Cuisinart coffee maker. To fully enjoy the aroma and delicious taste of brewed coffee, you need to change your water filter regularly. Set of 2 charcoal water filters Measures 1.5" L x 2.8" W x 5"H For use with all Keurig coffee makers requiring a water filter.