Features 12 Gauge Security Grille with Two-Piece Thru-bolt Louver Design. Recommended for Vandal-Proof Building Design.

Security Vision Frame with 12 Gauge Security Grille on each Side of Glass.

Heavy Gauge Vision Lite With Perforated Speaker Panel for Doors 1-3". For Use in Institutional, Detention, Prison and Installations Where Additional Security is Needed

Heavy Gauge Vision for Doors 1-3". For Use in Institutional, Detention, Prison and Installations Where Additional Security is Needed.

Door Louver with Fusible Link that is Listed by UL and WHI. Ideal for Use in Fire Doors with up to 1-1/2 Hour Rating for Security & Detention Applications.