These Siemens water filters are suited for bean-to-cup coffee machines from the SIEMENS/BOSCH EQ. series, as well as all Tassimo coffee machines. Using them will allow you to protect your coffee machine from limescale deposits, enabling you to enjoy delicious coffee brewed using fresh, clean water.How to use these water filters?Install the water filter inside the water tank of your coffee machine, and make sure to replace it every 2 months. It's important to run the water filter activation/replacement program on your coffee machine too (see the user manual of your model) to ensure that the appliance recognises the insertion/replacement of a filter and sends you the correct notifications later on.