This rubber disk fits in your 58 mm and 53 mm portafilter and allows you to backflush your espresso machine.
- Only espresso machines with 3-way solenoid valves can be backflushed.
- Please follow instructions on the backflush detergent packaging carefully.
- For more information on backflushing and espresso machine cleaning, check out this great article from Home Barista.
- Espresso parts are non-returnable.