Gdmug Charcoal Water Filter,water Filter Cartridges for Keurig Pack of 12(one Year Supply Cleaner) Replace every 1 month or 30days and cleaner and healthier One year supply Soak for 5 minutes,rinse for 60 seconds With individual sealed opp bag Designed for all Keurig coffeemakers: These charcoal water filters are exclusively designed for all Kuerig