Due to GERDA SLR module lock insert including a toothed bar, it is easy to install the tedee lock on your door. Modularity of the lock insert ensures full range of size adjustments from internal side of your door. 30 to 61mm size can be obtained from the internal side; the lock insert features permanent 300mm size on the external (key) side.
The table including all available sizes can be found below.
GERDA SLR Modular lock insert