71.6 mm x 55 mm x 8.2 mm, conical. Fits all models of La Marzocco. The Cafelat and "LM" side faces up when installing. The reason silicone was chosen as the material is purely from a cleanliness point of view, the gaskets are neutral and do not have any smell or taste. They do not bake hard so removal is easier. Always use a silicone lubricant such as food safe white grease. Silicone does not like petroleum based grease. When installing do not use a sharp screwdriver to push them in, the silicone will break. Use the portafilter with the basket removed to install.
