MUL-T-LOCK'S line of retrofit cylinders is designed to fit into almost any existing lockset. These cylinders will upgrade almost any existing lockset with MUL-T-LOCK's Patented Key Control System, without the expense of replacing existing hardware.
Mortise Cylinders
Rim Cylinders
Key In Knob Cylinders
Removable Core Replacement Cylinders
Foreign Cylinders
