Heavy Duty ORNAMENTAL Iron Gate Double Cylinder Mortise Lockset 2-1/2" Backset 1"X 7-1/8" Faceplate.
Double solid brass cylinders Schalge Keyway keyed alike with 2 keys.
2-1/2" Backset, Lock Face front: 1" W X 7-1/8"H.
Spring loaded spindles with Strike and mounting screws included.
Works and fits same as Marks 22AC.
Through-bolted knob plate assemblies.

All Mul-t-lock items come standard with 2 keys and 1 Mul-lock key code I.D. card.
 
This patented platform provides enhanced security at a price you can afford.  Mul-T-Lock combines its advanced telescopic pining technology with a special patented cut and special,  high-grade components to enable scalable and modular capabilities. Smartly designed to last, deter and enhance protection, the Junioroffers higher resistance to break-ins, intrusions by bumping, drilling and picking.