Breville recommends that filters be changed every two months NOTE: this is not the genuine Breville product. Made of high-quality resin which is certified against WQA and ISO9001 standard. Superior quality: All water filters are made out of resin in order to protect your Breville coffee machine from the damages posed by hard water buildup also eliminate the smell and taste of chlorine, sulphur and iron as well as some minerals, soften the hard water with progress called ion exchange. Easy and safe: These Breville Espresso replacement filters are incredibly easy to use as they are designed to simplify the filter exchange process. Each water filter is individually sealed with a sufficient amount of resin beads in order to ensure the highest level of satisfaction Compatible with the BES990 Batch 1746 & earlier, BES980 Batch 1751 & earlier, BES920 Batch 1800 & earlier, BEP920 Batch 1800 & earlier, BES900XL, BES870XL, BES860XL, BES840XL, BKC700XL, BKC600XL espresso machines and so on. Breville recommends that filters be changed every two months. Specifications: Item weight:130 Grams Caution: Some sellers are selling these filters with not qualified material which is not clean and hygeian for drinking. Our filters are definitely made with qualified material, almost the same quality with the genuine one. Compatible with: Barista Express BES870 Barista Pro BES878 BEC250 BEP920 BES250 BES810 BES840 BES840XL BES860 BES860XL BES870 BES870XL BES900 BES900XL BES920 BES920XL BES980 BES980XL BES990 BKC600XL BKC700XL Dual Boiler Package Included: 12 x Water Filters Notes: The colors may be a little different for the different monitor display. Please allow minor deviation due to manual measurement