Siegenia Aubi GR3 or GR4 upvc patio or tilt turn drive gear lock rods
Backset: 16 - 17mm
Handle hole centres: 43mm
Faceplate: 16mm
Locking points: 2 roller cams 9mm ht (Will usually fit into either standard roller or musroom keep)
Faceplates stamped:
SI Aubi 3 GR 3 FFH 1461 - 1920
SI Aubi 4 GR 4 FFH 1880 - 2380
This is part of the tilt turn drive gear range, but commonely used as tilt & slide patio drive gears (handle inside only)
You may find that your existing drive gear has a "switch barrier" device (A dark brown oblong shaped appendage attaatche to the faceplate) It has a metal arm that engages against the frame when the window is closed. This device stops stops the handle been operated when the window is open to help prevent any trapped fingers or putting the opener into the tilt position inadvertently. You may find that the existing window does not have this device fitted (as some fabricators did not like to use it) You can remove it from the existing one if you so wish with a flat screwdriver by forcing it between the lifter and the faceplate and twisting it out and away with some force and re-fitting it to the new one however you will probally find it easier and less hassle to ignore this device.
Underneath the faceplate are teeth to connect to any corner drive gears.
This patio generally only has the handle fitted to the inside of the patio and the actual handle has a locking key in it.






















