FAQs
With the DL2700, DL2800 and DL3000 locking devices, what can I use to help when installing these locks with a 5-inch backset?
When a 5 inch backset is required when installing the DL2700, DL2800 and/or DL3000 locking devices, the Marks USA 5-inch extension (part #1855) may be used.