33 In.H-W 6.5 In.L Extrd Alu Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 3250 fpm, Overall Height 33 in, Rough Opening Diameter 30 1/2 in,...

In stock
  • RevType
  • 2
  • Manufacturer
  • DAYTON
  • Sku
  • 4FZH8
  • Identity
  • 5997275267

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