Product Overview
NGP L-1800 Adustable Louver for 1-3/4" Thick Doors
- For 1-3/4" Thick Doors
- Manually Adjustable Blades
- 18 Ga. Cold Rolled Steel Frame
- 18 Ga. Cold Rolled Steel Adjustable “Z” Blades
- Mitered Corners Secured With Reinforcing Clips
- #8 X 3/4" Phillips Head SMS
- Free Area 40%
- Standard GPZ-Gray Primer finish (field finish to desired color)
- Optional colors include ASL Aluminum Silver, BPR Beige Primer (matches Steelcraft), DKB Dark Bronze, MBL Matte Black, or W White

| Brand | |
|---|---|
| Finishes |
MBL - Matte Black, GPZ - Gray Primer, BPR - Beige Primer, DKB - Dark Bronze, W - White, ASL - Aluminum Silver |
| Size |
12" x 12", 18" x 12", 18" x 18", 24" x 12", 24" x 18", 24" x 24" |
| Material |
Cold Rolled Steel |
| Fire-Rating |
None |
| Free Flow Area |
40% Free Area |
| Fasteners |
#8 x 3/4" Flathead Phillips SMS - Included |
| Buy American Act Compliance |
Meets Buy American Act - Made in USA |