La Pavoni Puccino Group Seal 4mm - 5660001 From  £7.44

Tökéletes jó méret!!!

This seal is apparently intended for La Pavoni Puccino, but it also works in La Pavoni Domus Bar.
The 'proper' seal intended for the Domus Bar keeps leaking on my machine (even new seals), but this one works. It has almost identical dimensions, however, it's a lot stiffer and therefore stays in position.