The Fenster Bi-Fold gearbox engages the top and bottom security bolts by up top 25mm.
Features
- Bi-fold Gearbox
- Creates up to 25mm of engagement of the security bolts
- Controls the top and bottom security bolts
Description
The Fenster Bi-Fold gearbox engages the top and bottom security bolts by up top 25mm.
Features
Features
- Bi-fold Gearbox
- Creates up to 25mm of engagement of the security bolts
- Controls the top and bottom security bolts