Universal group supplement paper shim gasket Ø 73x59x0.8 mm
This paper shim gasket is used to make you group filter gasket thicker.
If, after you replace your gaskets the portafilter slide over to the right , this paper gasket will correct this.
This typically happens when your machine is over 4 years of age.
This gasket should be installed 1st followed by the main gasket.
When the group gasket goes hard and wears out you will need to replace this also.
Ø 73x59x0.8 mm
Fits most group gasket
Machines that use 57mm - 58mm tampers
While these gaskets fits these machines, it may not fit all of them, as the groups of different models and years vary. measure to make sure.