High-quality replacement filter - such as Krups F088, Nivona NIRF700/701, Melitta ProAqua, Siemens TZ60003, Bosch TCZ6003. Purifies water from mechanical particles, heavy metals, pesticides and calcium. Thanks to special cartridge formula, 20% better water filtration preventing scale buildup in the espresso machine. Noticeably improves the taste and aroma of water, which is very important when brewing coffee. Using the filter makes it easier to obtain ideally-tasting, purified water free from limescale deposits to protect the device from scaling.