There are currently 3 sizes of filter cups, steam rings, and cleaning discs for the different models of Breville espresso makers.
If you have one of the following models, then you want the 50mm size accessories.
- ESP-8XL - Cafe Roma
- BES200XL - BarVista
- 800ESXL / BES-800XL - the Duo Temp"
- BES820XL / BES-830XL - the Die-Cast Programmable Espresso Machine
If you have one of the following models, then you want the 54mm size accessories.
- BES-810BSS - the Duo-Temp Pro
- BES-840XL / BES-840BSS - the Infuser
- BES- 860XL / BES-870XL / BES-870BSS - the Barista Express
- BES-880XL - the Barista Touch
If you have one of the following models, then you want the 58mm size accessories.
- BES900XL / BES920XL - the Dual Broiler
- BES-980XL / BES-990BSS - the Oracle
- BES-990BSS - the Oracle Touch