Quality Replacment Charcoal Water Filters for Keurig Coffee Machines and Brewers. Replaces your Keurig water filter. Removes impurities (chlorine, odors, calcium & others) that interfere with taste and quality. Quality meets or exceeds original filter. Fits all Keurig Coffee machines that require a water filter. Bulk packaged with the environment in mind, in one clear bag. For Best Results Replace Monthly