Pack of 3 RFID (Radio-frequency Identification) technology - makes changing the filter easier than ever before Modified granule always filters limescale to an optimum level Suitable for all types of mains water The Claris Smart Water Filter Cartridge has been developed to help prevent scale deposits from building up in your coffee machine which can lead to breakdowns and limited efficiency. Water filter cartridges in your coffee machine filter out impurities from the water such as chlorine and calcium as well as bad tastes and odours before they touch the coffee grounds. Filtered cold water can also help improve the taste of brewed coffee. To make maximum use of the filter and its capacity JURA developed the Intelligent Water System (I.W.S.®). Using modern RFID (Radio-frequency Identification) technology to allow the coffee machine to continually communicate with the filter; the machine will recognise whether a filter has been inserted and will automatically activate the appropriate