A safety ring with seals. Compatible with all 9Barista machines.
The safety ring is a fail-safe device which will safely depressurise the machine if it's overheated. You'll know you need to replace the safety ring if you notice water leaking from a small hole on the side of the ring.
Instructions on how to fit the replacement safety ring can be found here.
Material: Silicone rubber
Internal diameter: 9.5mm
Cross section: 1.5mm