The Keurig® 3 months brewer maintenance kit is the perfect one-stop option for getting all the maintenance product you need for 3 months for your brewer. Includes (1) descale solution ,(4) rinse pods, and (2) water filter cartridge refills Water filters help remove chlorine from your water and should be changed every 2 months Keurig® descaling solution helps to extend the life of your brewer (when used regularly). Keurig 3-Month Brewer Maintenance Kit