Question about Koenig Finessa

The orange ring is directly on the removable brewing unit. If not available, it can be ordered from Koenig.
However, there may also be a fault inside the machine (connection clip for hose missing): Then there is (as with my machine inside a right mess.... If this is the case and the warranty is still valid, send the machine in.

Sorry, I thought I was doing a search. I have a major sealing problem and I'm looking for the type of orange O-ring recommended on this forum. Thanks in advance!