6 Charcoal Water filters plus 6 Ion-Exchange Resin Water filters for Replacement Breville BWF100, 12-Pack GREAT COMBINATION: Enhanced properties of activated charcoal filter bundle with the heavy metal reduction capabilities of ion exchange softener media. COMPATIBILITY: Breville espresso machine models BES900XL, BES870XL, BES860XL & BES840XL and Breville single brewing coffee machine models BKC600XL & BKC700XL. MULTI-STAGE FILTRATION: Charcoal water filter removes off-tastes and odors in addition to particles, bacteria, cysts, chlorine, organics and lead, advanced quality resin can protect your Breville coffee machine from the damages posed by hard water buildup. SAFE AND QUALITY GUARANTEE: Each water filter cartridge is individually sealed with sufficient amount of charcoal and resin beads in order to ensure the highest level of satisfaction. FOR THE BEST TASTING BEVERAGES: Replace the alternative filter cartridge every 2 months or every 60 water tank refills (sooner if you have hard water). Regular replacement of Breville water filter keeps brewed coffee fresh and full of flavor.