Our water filters reduce the accumulation of scale in the harder waters that are common. Correct use will help protect and extend the life of the machine. It is firmly installed in the water filter holder used in most coffee machines to ensure leak-free and the connections required for perfect water flow under pressure. Made from natural coconut shell and activated carbon. Premium filtration materials are used to remove impurities found in tap water, helping to create great taste and aroma in your espresso coffee. Materials with unique micro porous grid that removes even the smallest particles found in your water supply. Delivers perfectly filtered water which is critical to making high quality espresso coffee.