WATER FILTRATION SYSTEM These BWF100 compatible water filters work with espresso machines, with multi-stage carbon filters to remove 99% of calcium and contaminants, providing cleaner water for a better taste of coffee. SUPERIOR PURIFICATION TECHNOLOGY Each filter uses a pore size of less than 0.5 micrometer with activated carbon from coconut shells, effectively removing bad flavor and harmful substances that can affect the quality of your brew. MACHINE PROTECTIVE FORMULA Regular use helps prevent limescale build-up caused by hard water, extending the life of your coffee machine and maintaining optimal brewing performance for consistent results. QUANTITY : The set includes 6 replacement filters in 1.9*0.8*1 inch, providing up to 12 months use when changed every 60 tank refills or 2 months, making maintenance simple and economical. COMPATIBLE WITH MULTIPLE MODELS : Designed for use with various espresso machines including BES920XL, BES980XL, BES900XL, BES860XL, BES870XL, BES840XL and