The Siegenia HS Portal 150 Bi Fold Handle Gearbox is a genuine component manufactured by Siegenia Aubi, designed for use in bi-fold door locking systems.
This gearbox features a backset of 25mm, handle screw spacing of 43mm and a 7mm diameter spindle hole.
As a genuine Siegenia Aubi product, the gearbox is manufactured to integrate with the HS Portal 150 bi-fold door system.


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