The espresso machine manufacturer la Cimbali uses currently 2 model of portafilter gaskets on their espresso machines. Some of these gaskets are also interchangeable with other brewing groups from the La Cimbali group, like with Casadio and Faema. There are 3 sizes of portafilter gasket. the smallest one is for older lever domestic espresso machines
The smallest size of portafilter gasket has a outer diameter of 60,5mm and a inner diameter of 48,5mm. This gasket is used on the domestic lever espresso machines like the Cimbali Liberty and the La Cimbali Microcimbali.
The most common size of portafilter gasket is the gasket with a outer diameter of 71mm and a inner diameter of 56mm. this type is available in a conical shape, but also in a flat version. You will find this portafilter gasket on the Cimbali Junior, Cimbali M21 Junior, Cimbali M28, Cimbali M30, Cimbali M31, Cimbali M32, Cimbali M39 and the La Cimbali M100 espresso machine
The other type of portafilter gasket is used on the Faema groups used on la Cimbali espresso machines. You will find these groups on the Cimbali M23-UP, Cimbali M27-C, Cimbali M27-DT and the Cimbali M27-RE. This gasket has a outer diameter of 74mm and a inner diameter of 57mm.
