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BACKDRAFT DAMPER,VERT/HORIZ MTG,7 3/4 SQ

BACKDRAFT DAMPER,VERT/HORIZ MTG,7 3/4 SQ

DAYTON

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Available only while supplies last. Quantities may be limited. The Item is FINAL SALE.
BACKDRAFT DAMPER,VERT/HORIZ MTG,7 3/4 SQ

BACKDRAFT DAMPER,VERT/HORIZ MTG,7 3/4 SQ

DAYTON

Web Price If you have a User ID, sign in to view your account pricing. Your price may be different from the price displayed. : $39.29 / EACH

EHC: EHC :

Compliance and Restrictions

  • None

Availability
Availability
Availability Service is temporarily down Available for pickup on: To view Availability, please select a Branch
Availability Service is temporarily down Expected to arrive on: To view Availability for another location, please enter postal code below Availability dates may vary based on the assortment of product in the cart and is not final until you complete your order.
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https://catalogue.grainger.ca/?hybris=true
  • Item # WWG3HHL4
  • Mfr. Model # 3HHL4
  • UNSPSC # 40101504
  • CATALOGUE PAGE # 1859
  • Shipping Weight 1.81 lbs

Technical Specs

  • Item 7.75"H-W 4.5"L Aluminum Backdraft Damper
  • For Nominal Duct Diameter 8 in
  • Number of Panels 1
  • Overall Height 7 3/4 in
  • Rough Opening Shape Square
  • For Duct Shape Square
  • Overall Width 7 3/4 in
  • Overall Length 4 1/2 in
  • Rough Opening Length 8 in
  • Rough Opening Width 8 in
  • Damper Type Dynamic
  • Blade Type Flat Blade
  • Closure Type Spring
  • Closure Velocity Rating 2,000 fpm
  • Switch Action Normally Closed
  • Includes Pre-Punched Conduit Hole Knock-Out: Felted Edges for Quiet Operation
  • Flange Type None
  • Airflow Direction Horizontal: Vertical
  • Series 411
  • Bushing Material Nylon
  • Damper Finish Mill Finish
  • Damper Application Backdraft
  • Frame Material Galvanized Steel
  • Maximum Air Velocity 2000 fpm
  • Rough Opening Diameter 8 in
  • Fits Fan Diameter 8 in
  • Free Area 0.3 sq ft
  • Frame Material Thickness 20 ga
  • Frame Depth 2 in
  • Maximum Pressure 1 in wc
  • Blade Material Aluminum
  • Single Acting/Double Acting Single Acting
  • Maximum Ambient Temperature 180 Degrees F
  • Blade Orientation Parallel Blades
  • Frame Less Flange 7 3/4
  • Counterbalanced No
  • Mounting Location Ceiling: Wall
  • Blade Seal Material Felt
  • Opening Type Motorized
  • Mounting Position Horizontal: Vertical
  • Blade Material Thickness 26 ga
  • Minimum Ambient Temperature -40 Degrees F

Compliance and Restrictions

  • None

SDS Document Not Found

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

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