1、Remove Dust Particle: The water filter removes even the smallest dust particles. It keeps the water cycle clean and provides delicious pure water for coffee making. Let's enjoy better, tastier coffee. 2、Reduce Limescale: Water filter for Saeco Aquaclean contains activated carbon particles and ion exchange resin to reduce limescale and soften water. 3、Keep Coffee Machine Pipe Clean: The effective cleaning of the coffee machine water filter keeps the pipes of the coffee machine clean and prevents the build up and blockage of the coffee machine, thereby prolonging the life of the coffee machine. 4、Regular Replacement: Replace the filter at least every 3 months or as required by the machine. After using the filter, the content of harmful pollutants such as chlorine and heavy metals will be greatly reduced. 5、Simple Operation: Simply connect the water filter for Saeco Aquaclean to the water tank of the CA6903 coffee machine.