ROTO upvc window lock gear box

• 3 stars, based on 1 votes

• These ROTO uPVC and Modern Timber frame window lock gearboxes come in either a 20mm or 22mm backset
• The 20mm will have a 20 stamped on the side
• If it is 22mm there will be no stamp
• Which is quite confusing but it can lead you to finding out which model you have
• The fixing centres for the Roto UPVC Window Lock Gear Box is 42mm and also comes wit