Alternative to NBR, the Silicon provides better movement in the portafilter head and is considerably less difficult to service, as the gasket cannot crumble. *Please Note: The Linea Mini, Leva & KB90 have separate gaskets as standard. Features 71x55x8mm Suitable with: Modbar, Linea Classic, Linea PB, GB5, FB80, Strada (MP, EE, ABR, EP, AV) and GS3 . Manufacturer: - La Marzocco Manufacturer Code: - H.3.007