Hörmann timing belt coupling for Hörmann guide rails FS 10, FS 2, FS 3

The Hörmann timing belt coupling is suitable for the timing belts of the following drive rails:
- Hörmann drive arm, one-piece guide rail FS 10
- Hörmann drive arm, two-part guide bar FS 2
- Hörmann drive arm, three-part guide rail FS 3-M
- is also compatible with the FS-BerryMatic and the FS 50