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20X18 Fire Damper – Shoemaker 2533 Series

SKU: 131978
$122.00/ea Free Shipping!

   Available to Ship in 8-10 days

This product is NON-RETURNABLE. Please make sure you understand the item and the dimensions before ordering. By Clicking "Keep in Cart" below you are acknowledging that you understand that this product can not be returned.

20X18 Fire Damper – Shoemaker 2533 Series

SKU: 131978

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Available to Ship in 8-10 days

About the Shoemaker 2533-20X18

This 20" x 18" Shoemaker 2533 Series Fire Damper is designed to fit and cover a 20” wide by 18” high opening. Shoemaker has a complete line of products designed for homes, offices, stores, and many other commercial and residential applications. The quality and simplicity of this fire damper are only two of the many reasons why Shoemaker Manufacturing leads the field in innovative air-grille design for real world applications. The Shoemaker 2533 Thin line Frame 1-1/2 Hour Curtain-Type Fire Damper Out-of-Air stream features a 2-inch thin line frame and is equipped with interlocking steel roll-formed blades and frames. It is also designed with a self-locking corner. This fire damper is available in square or rectangular standard sleeves (maximum dimension 48” wide by 41” high). It can only be mounted in a vertical position. This fire damper is manufactured from galvanized mild steel (G-90) which is corrosion-tested. The safety features and quality of this fire damper meet UL standards and it is also approved by the California State Fire Marshall. The Shoemaker Manufacturing Company leads the field in innovative air-grille design and it guarantees that its products are free from defective materials. Be sure to measure the hole opening size instead of measuring the face plate of your old grille. This fire damper is designed to fit over a 20" x 18" existing hole or duct. Refer to the Specification Sheet for more information.

Product Details

Product: Vents and Terminations
Manufacturer: Shoemaker
Use: Ducting and Venting
Style: Fire Damper
Mpn # 2533-20X18
Weight 14.40 lbs.

Product Features

  • Optional series sleeve styles: A-standard square or rectangular, B- out-of-airstream, C-Flanged (please specify if flanged in or flanged out), D-round collar (2500)
  • Optional standard square or rectangular sleeve style for vertical mount only, maximum dimension: 48 wide x 41 high
  • Optional fractional O.D. sizes are available
  • Optional finish: stainless steel
  • 165 degrees replaceable fusible link
  • 2-inch thinline frame
  • Damper manufactured from corrosion tested galvanized mild steel (G-90)
  • Interlocking steel roll-formed blade
  • Blade lock
  • Self-locking corner
  • U.L listed and California state marshall approved


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