Air Louvers VLFR Round Square Profile Through Bolted Metal Vision Lite for 3/16″ to 1/4″ Thick Glazing w/ Powdercoat Finish

Air Louvers VLFR ThruBolt™ Round Vision Lites are fire-rated circular vision frames constructed from 18 gauge steel, designed for 1-3/4″ commercial doors and standard 3/16″ to 1/4″ glazing thicknesses while maximizing visible glazing area.

  • Designed for 1-3/4″” door thickness
  • Accepts 3/16″” – 1/4″” glazing thickness
  • Fire ratings up to 180 minutes
  • 18 gauge cold rolled steel construction
  • Available in 12″”, 18″”, and 24″” diameters

Product ID: AIR-VLFR

FREE delivery to most businesses and jobsites on qualifying orders.

HOW TO ORDER

  • Get a written quote from a USA Fire Door Solutions Specialist
  • Approve & we ship your order
  • Click the button below or call us to get started. You can upload plans, photos or files if you have them.

Product Details

Air Louvers VLFR ThruBolt™ Round Vision Lites provide the same secure installation and fire-rated performance as standard VLF ThruBolt™ vision frames while offering a circular design for architectural applications. Built from 18 gauge steel and utilizing a thru-bolt installation method, these round vision lites maximize visible glazing while maintaining structural durability. Designed for commercial hollow metal and wood doors, VLFR models provide a clean architectural appearance while maintaining compliance with fire-rated opening requirements when installed within approved assemblies.

Specifications
Application: Standard 1-3/4″” door thickness
Glazing thickness: 3/16″” – 1/4″”
Frame material: 18 gauge cold rolled steel
Configuration: Round ThruBolt™ vision lite
Available diameters: 12″”, 18″”, 24″”
Standard finish: Mineral bronze powder coat
Fasteners: #8-32 flathead Phillips thru-bolts
Fire ratings: Up to 180 minutes depending on glazing size and listing
UL listings: ANSI/UL 10B, ANSI/UL 10C, CAN/ULC S104
Minimum size: 12″” diameter
Maximum size: 24″” diameter
Compatible fire-rated glazing: Firelite, Pyran Platinum F, Fireglass, WireShield
Compatible non-rated glazing: Tempered glass
Optional materials: 304 stainless steel, galvanneal steel, zinc-plated steel
Optional fasteners: Torx screws
PAK options: Vision lite, glazing, and glazing tape kits available

Downloads

Download Vision-Lite-VSLR-Submittal.pdf

How to ORDER

Tell us what you need and we'll do the work for you! Most projects are quoted within 24 hours.

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Step 1

TELL US WHAT YOU NEED

Share any projects details you have. Or just send us a message and we'll have someone reach out to you. 

  • Rapid Response Time
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02

Step 2

GET A WRITTEN QUOTE

Your dedicated account manager will send you a quote or contact you with any questions.

  • Quick Turnaround

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Step 3

APPROVE & WE SHIP

We'll work with you throughout the entire process and carefully track your order until it's received.

  • Priority Lead Times

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