17.75 In.H-W 4.5 In.L Alu Univ Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 18 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 17 3/4 in, Rough Opening Diameter 18...

In stock
  • RevType
  • 2
  • Manufacturer
  • DAYTON
  • Sku
  • 2FTU9
  • Identity
  • 5997231654

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