Marks USA - Series 21AC - Ornamental Iron Mortise Lockset - Double Cylinder - Backset: 2-1/2" - Entrance - Satin Chrome - Optional Handing PDQ Keyway: GT15

Keyway: GT15

Easy manual use

Wired Door Sensor

and Ericsson fiber holder platforms

Marks USA - Series 21AC - Ornamental Iron Mortise Lockset - Double Cylinder - Backset: 2-1/2" - Entrance - Satin Chrome - Optional Handing PDQ Keyway: GT15Marks USA has been a primary manufacturer of Ornamental Iron Storm Door locks for many years. During that time, many innovative improvements were developed to increase the reliability and ease of installation. Innovations includes the "Uni Lock" model with single screw assembly, elimination of threaded swivel spindles in favor of the more secure thru bolted design, helper springs in lever rose sets, and steel hubs for greater endurance.