!
Browser upgrade recommended: Improve your Grainger.ca experience by upgrading your browser to Edge or Chrome. Learn more about our supported browsers.
Back to Top

Filter Results By

Applied Filters
Clear All

Shop By
Brand
Price
Mounting Location
Mounting Position
Overall Height
Overall Width
For Nominal Duct Diameter
Frame Material
Blade Material
Maximum Air Velocity
Flange Type
Flange Width
Number of Panels
Free Area
Fits Fan Diameter
Frame Depth
Suggested results for "SUGGEST-ITEM"
Product ITEM is unavailable. See products from the same category below.

Backdraft Dampers

Backdraft dampers, also called gravity dampers, keep air flowing in one direction through an HVAC duct. These dampers open when the ventilation system is running and close dynamically to prevent the backflow of air or materials.

https://catalogue.grainger.ca/?hybris=true

153 Results Found

In stock at branch(0)
Results per page :  16 | 32 | 48
  • DAYTON
  • ALUMINUM BACKDRAFT DAMPER, FOR 12 IN FAN, SINGLE PANEL, 17¾ IN H, 17¾ IN W
  • Item # DTN4HX77
  • Mfr. Model # 4HX77
  • EHC: EHC :
  • This CWV series manual damper includes felted edges for quiet operation, is made of aluminum, and it measures 17¾ inch width, 17¾ inch height, 4½ inch length. This manual damper is wall mountable.

    View more View less

    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # 1859
  • DAYTON
  • ALUMINUM BACKDRAFT DAMPER, FOR 36 IN FAN, FOR 36 IN NOMINAL DUCT DIAMETER, SINGLE PANEL
  • Item # WWG3HHN1
  • Mfr. Model # 3HHN1
  • EHC: EHC :
  • This 611 series manual damper includes pre-punched conduit hole knock-out, felted edges for quiet operation, is made of galvanized steel, and it measures 35¾ inch width, 35¾ inch height, 4½ inch length. This manual damper is ceiling/wall mountable.

    View more View less

    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # 1859
  • DAYTON
  • ALUMINUM BACKDRAFT DAMPER, FOR 48 IN FAN, FOR 48 IN NOMINAL DUCT DIAMETER, SINGLE PANEL
  • Item # WWG3HHN3
  • Mfr. Model # 3HHN3
  • EHC: EHC :
  • This 611 series manual damper includes pre-punched conduit hole knock-out, felted edges for quiet operation, is made of galvanized steel, and it measures 47¾ inch width, 47¾ inch height, 4½ inch length. This manual damper is ceiling/wall mountable.

    View more View less

    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # 1859
  • DAYTON
  • ALUMINUM BACKDRAFT DAMPER, FOR 18 IN FAN, SINGLE PANEL, 21 X 21 X 2 IN, FELT
  • Item # DTN4HX66
  • Mfr. Model # 4HX66
  • EHC: EHC :
  • This manual damper includes pre-punched conduit hole knock-out, felted edges for quiet operation, is made of galvanized steel, and it measures 21 inch width, 21 inch height, 4½ inch length. This manual damper is ceiling mountable.

    View more View less

    SDS Document Not Found

    For assistance please contact the SDS Coordinator by email at productcompliance@grainger.ca

    CATALOGUE PAGE # 1859
Results per page :  16 | 32 | 48

Add to Order List

Your items were added

Your items were added to some lists

Max quantity exceeded. The item could not be added to the following List(s)

No Existing List Found. Please Create New List below.

Your list has been created

Please select a list