The gasket work just fine. Fit well my Breville 870 XL.
Breville 54mm // Silicone Brew Gasket // 800 Series
In this frustrating world of ‘products obsolescence’ it was wonderful to be able to self-repair an older machine !
Arrived fast, and it works very well (I used a youtube video to figure out exactly how to install it).
Inexpensive, delivered quickly, easy to install. I watched a how-to video first which helped tremendously. Very happy to have my 5 year-old Breville Barista working like new!