For 24" x 24" door cutout. Fusible Link louver kit with mitered corners including reinforcing clips. For 1-3/4" thick, wood or hollow metal fire doors up to 90 minutes. Blades close when activates by fire/heat (165 Degrees Fusible Link). Made in the USA.

Gray primer powder coat finish. Packaged with #8 x 3/4" Phillips head sheet metal screws (SMS). Frame is made from 18 gauge cold roller steel and the adjustable louvers blades are 18 gauge steel.

Specifications for NGP L-1900-24x24 Fusible Link Louver Kit

• Door Cut Out Width: 24"
• Door Cut Out Height: 24"
• Frame Projection Off Door: 3/16"
• Door Thickness: 1-3/4" Thick Door
• Fusible Link: 165 Degrees F
• Installation Screws: #8 x 3/4" Phillips head SMS
• NGP L-1900 Cutsheet (PDF)

*Sold Individually.