The Jura CLARIS Pro Smart filter cartridge eliminates the need for conventional descaling and increases the life of the Jura coffee machine when it remains free of calcium residue. The coffee machine continuously collects information on the use of the filter and alerts the user when the filter capacity has been used up. Replacing the filter is easy. The capacity of the filter cartridge depends on the hardness of the water. For water hardness 1-10 ° dH: up to 300 l With a water hardness of 11-12 ° dH: up to 240 l With a water hardness of 13-15 ° dH: up to 180 l