16mm Manual Middle Extension Shootbolt-Tongue @ 46.97", 50.55" Length

Hoppe HLS9000 Multi-Point Middle Extension, Tongue/Shootbolt Version for active Door.

Faceplate: 5/8 inch ( 16mm),
Middle extension length: 50.55 inches ( 1284mm)
Top Tongue position: 46.97 inches ( 1193mm)
Cutoff: N/A
Number of screws: 7
Markings on some have date codes 48 2011, 2012, etc