Per Breville BES920XL BES900, 58mm Portafiltro Senza Fondo Caffè Acciaio Inox
Naked Portafilter: This bottomless portafilter compatible with Breville Dual Boiler BES920XL, BES920CBXL, BES920BSXL, BES900XL, and the Oracle BES980XL and BES990BSS Espresso Machine. Other machines are not applicable.