Resin Water Filters for the owners of the following Espresso Machines: the Oracle® Touch (BES990 - Batch 1746 & earlier) the Oracle® (BES980 - Batch 1813 & earlier) the Barista Pro™ (BES878) the Barista Express™ (BES870) the Infuser™ (BES840) the Duo-Temp™ Pro (BES810) the Dual Boiler™ (BES920 - Batch 1800 & earlier) Disclaimer: Please check your existing filter or machine batch code to ensure that the machine is compatible. *Buy two to get free shipping*