Series of diaphragms and gaskets for carburettor overhaul. Models: Treivelle: BT 120, BT 121 Brushcutters: FR 350, FR 450, FR 480, FS 120, FS 200, FS 250, FS 300, FS 350, FS 380, FS 400, FS 450, FS 480 Shakers: SP 200, SP 401, SP 450, SP 451, SP 471, SP 481