NGP L-VGLF-PZ Security Door Window Lite - 1/2" Lexan Polycarbonate, 9" x 9"
The National Guard Products L-VGLF-PZ is a security door window lite for 1-3/4" hollow metal or wood doors. The kit is a 9" x 9" door cutout / order size with 6" x 6" exposed glass and 1/2" high-impact polycarbonate glazing in an 18-gauge cold-rolled steel frame with mitered and welded corners.
The exterior face has no exposed fasteners. Standard finish is gray primer (GPZ) powder coat. #8 x 1" oval-head Tek screws and a 2.8 oz. silicone sealant tube are included. Factory product page and catalog L31 list no UL / fire-door certification for this model -- it is sold as a non-rated security vision lite.
Product Features
- 18 Ga. Cold Rolled Steel
- Mitered and Welded Corners
- For 1-3/4" Hollow Metal or Wood Doors
- 1/2" Thick High Impact Polycarbonate Plastic
- No Exposed Fasteners on Outside of Door
- Low-Profile Frame
- 6" x 6" Exposed Glass Size
- #8 X 1" Oval Head Tek Screws
- 2.8 Oz. Silicone Sealant Included
- Gray Primer (GPZ) Powder Coat Finish
- Designed for Use on 1-3/4" Thick Doors Manufactured Within Door Industry Tolerance of +/- 1/16"
Key Benefits
- Impact-resistant vision panel: 1/2" high-impact polycarbonate where standard glass would shatter.
- Tamper-resistant exterior: no exposed fasteners on the outside of the door.
- 18-gauge steel frame: mitered and welded corners, low-profile frame.
- Fits 1-3/4" doors: hollow metal or wood, within door industry tolerance of +/- 1/16".
- Complete kit: #8 x 1" oval-head Tek screws and 2.8 oz. silicone sealant included.
- Field-paintable GPZ: gray primer powder coat, ready to match the door finish.
Typical Applications
- Schools and universities -- corridor and classroom doors needing a vandal-resistant vision panel
- Healthcare and behavioral-health corridor doors
- Industrial and institutional openings on 1-3/4" hollow metal or wood doors
- Replacement security lite where a 9" x 9" cutout and 6" x 6" view are specified
Technical Details
| Model / Series | NGP L-VGLF-PZ |
| Manufacturer | National Guard Products |
| Part type | Security door window lite kit |
| Door type | 1-3/4" hollow metal or wood doors (+/- 1/16") |
| Door cutout / order size | 9" x 9" |
| Cut glass size | 7-1/8" x 7-1/8" |
| Exposed glass (visual size) | 6" x 6" |
| Glazing | 1/2" high-impact polycarbonate (Lexan) |
| Frame | 18-gauge cold-rolled steel, mitered and welded corners |
| Frame profile | Low-profile |
| Exterior fasteners | None -- no exposed fasteners on outside of door |
| Fasteners included | #8 x 1" oval-head Tek screws |
| Sealant included | 2.8 oz. silicone |
| Finish | Gray primer (GPZ) powder coat |
| Fire rating | Non-rated (factory Standards list is empty; NGP install sheet is L-VGLF-no-rating) |
| Catalog | NGP Lite Kits & Louvers Catalog 2026, page L31 |
| Factory page | ngp.com product-detail productId 3616 |
| Brand | National Guard Products |
| Door Thickness | 1-3/4" Dr Thickness |
| Fire Rated | Non-Rated |
| Visual Size | 6" x 6" |
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