Avocet 2 deadbolts 4 rollers split spindle upvc door lock
The avocet deadbolt and roller multipoint lock was originally designed in 28mm and 35mm backset models however they are now only available in their 35mm models if you are in the rare situation where you need to replace a 28mm backset model this is still possible with minimal modification by switching to the gu 28mm deadbolt multipoint lock