C1 (2GC-2.2 / 2FC-3.2) (2GC-2.2 / 2FC-3.2) 2FC-2.2 - Ø 46 mm - 2 cil (81) 2FC-3.2 - Ø 46 mm - 2 cil (81) 2GC-2.2 - Ø 41 mm - 2 cil (81)