Air Louvers VSLH Slimline™ Vision Lites with Mullions provide the same fire-rated performance and low-profile construction as standard VSLH vision lites while incorporating welded steel mullions to create a divided lite appearance. Mullions are welded to both sides of the vision frame to increase strength and security while maintaining the Slimline flush mounting profile. Designed for commercial hollow metal and wood doors, these vision lites allow architects and contractors to achieve both design aesthetics and fire-rated performance when installed in accordance with approved listings.

Specifications
Application: Standard 1-3/4″” door thickness
Glazing thickness: 3/16″” – 5/16″”
Frame material: 20 gauge cold rolled steel
Standard finish: Mineral bronze powder coat
Fasteners: #8A x 1-1/4″” flathead Phillips screws
Minimum size: 4″” x 4″”
Maximum size: Based on glazing listing and door manufacturer approval
Fire ratings: Up to 180 minutes depending on glazing size and listing
UL listings: ANSI/UL 10B, ANSI/UL 10C, CAN/ULC S104
Mullion width: 1″”
Mullion depth: 5/8″”
Mullion construction: Welded to both sides of frame and butted to glass
Mullion configurations: Multiple column and row configurations available
Optional mullion sizes: 1/2″” x 1/2″”, 1/2″” x 3/4″”
Optional materials: 304 stainless steel, galvanneal steel, zinc-plated steel
Compatible glazing: Fire-rated and non-rated tempered glazing options
Optional fasteners: Torx screws
PAK options: Vision lite, glazing, and glazing tape kits available

Downloads

Download Vision-Lite-VSLR-Submittal.pdf