Sargent 6300-LB-4 LFIC Core, Lb Keyway, Satin Brass
SARGENT 6300 Permanent Large Format Interchangeable (Removable) Core Cylinder.
SARGENT LFIC (Removable) Core Cylinders and Master Key Systems are available for a quick change of cylinders for increased security. It is not necessary to remove the lock from a door to rekey the opening.