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National Guard Products L-1800-GPZ

Adjustable Blade Louver

Quick Product Details

  • Hinged Louver Blades that snap shut in the event of a fire
  • 18 Gauge Galvannealed Steel Frame
  • 18 Gauge Adjustable Z-Blades
Price: $239.00 /each

SKU: L-1800-GPZ

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The NGP Adjustable Blade Louver is for use with 1-3/4" wood or metal doors and provides 40% free air flow while fastening to one side to ensure security. This louver has an adjustment lever to manually adjust the airflow moving through the louver.

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Price: $239.00

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Choose Rough Opening Size:

12x12 12x12" Rough Opening Size
18x18 18x18" Rough Opening Size +$61.00
24x12 24x12" Rough Opening Size +$66.00


The L-1800 louver for use with 1-3/4" wood or metal doors provides 40% free airflow. Featuring 18 gauge adjustable "Z" blades. The 18 gauge steel mitered frame secures the grille assembly in place giving it a clean appearance.
  • This product screws in from one side only, furthering the clean aesthetic appearance and giving an added layer of security.
  • Provided with standard Phillips head screws
  • Available in 12x12", 18x18" and 24x12" size

Available Options: Choose Options Above

  • Rough Opening Size:

    • 12x12" Rough Opening Size
    • 18x18" Rough Opening Size
    • 24x12" Rough Opening Size



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