Amazon.com: Somune Water Filter for Delonghi DLSC002, Delongie Water Filter Cartridge Active Carbon Fabric Softener, Compatible with Delongie ECAM, Esam, ETAM, BCO, EC. (Pack of 4): Home & Kitchen
How to Install a Water Softener Filter on Your De'Longhi PrimaDonna Avant Esam 6750 Coffee Machine - YouTube
How to install the water softener filter on your De'Longhi PrimaDonna Exclusive ESAM 6900 - YouTube
2X Coffee Water Impurity Filter For Delonghi ESAM 6900 6700 ESAM 6620 Primadonna | eBay