· For cardiophon 2.0
· For anestophon
· For duplex 2.0
· For tristar
· No. 11140 Ø 48 mm (1.89 in)
· No. 11141 Ø 35,8 mm (1.41 in)
· No. 11143 Ø 28 mm (1.10 in)
· No. 11144 Ø 22 mm (0.87 in)