Product Overview
NGP L-1900 Fire-Rated Fusible Link Louver for 1-3/4" Thick Doors up to 90 Minutes
- Blades close when activated by fire/heat
- 18 ga. cold rolled steel frame
- 18 ga. cold rolled steel adjustable “Z” blades
- Mitered corners secured with reinforcing clips
- Stainless Steel Spring
- 165° Fusible link
- Free area 40%
- #8 x 3/4" Phillips head SMS
- UL Listed for use in 45-90 minute fire-rated doors (not allowed in 20 min. or 3-hour doors)
- 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, BPR - Beige Primer, GPZ - Gray Primer, DKB - Dark Bronze, ASL - Aluminum Silver, W - White |
| 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 |
CERTIFIED by UL to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80 and NFPA 252 |
| 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 |