The Von Duprin CD kit comes with the cover plate machined to accept the cylinder dogging mortise cylinder.1 1/4" mortise cylinder with an inverted straight cam is required for CD option on Von Dupr...
Medeco does offer a key-in-lever cylinder to fit the Schlage ND.
You will need to contact Medeco for the cylinder
Specify a key-in-lever cylinder to fit the Schlage ND lo...