LZ H.3.002 Marzocco group gasket 7.2 mm This conical shape gasket fits La Marzocco GS-2, GS-3, Linea, FB-70, GB-5 and FB-80. The thickest version with a bevel, used on older machines with extensive wear on the groups and portafilters. The "7" indicates the profile on the outside diameter, the flat portion, and "9" refers to the profile on the inside diameter, up to the peak of the cone shape. Installed correctly, with the cone sloped side facing down, the beveled edge of the cone shape adds an additional surface for a portafilter basket to seal against. NOTE: LaMarzocco old part #L105/B9, new part #H.3.002. Dimensions Ø 72X55X7.1/9mm Cross reference: Part number Manufacturer MZ.204 ASCASO M100 GRIMAC 1186761 LF L105/B9 MARZOCCO H.3.002 MARZOCCO 300012 NUOVA RICAMBI