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24" Backdraft Damper / Wall Shutter, 24-1/2" x 24-1/2" Opening Required close
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24" Backdraft Damper / Wall Shutter, 24-1/2" x 24-1/2" Opening Required

Price $83.25 / each

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  • Item # 3C308
  • Mfr. Model # 3C308
  • UNSPSC # 40101504
  • Catalog Page # 4103
  • Shipping Weight 8.6 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemBackdraft Damper / Wall Shutter
  • Fits Fan Dia.24"
  • Overall Square27"
  • Opening Required24-1/2" x 24-1/2"
  • Frame Depth2-1/2"
  • Open Depth5-3/4"
  • Flange Width1-1/2"
  • Mounting Hole SizePrepunched
  • Free Area3.320 sq.ft.
  • Max. Velocity2500 FPM
  • Mounting PositionVertical
  • Blade MaterialWhite Painted Aluminum
  • Construction MaterialExtruded Aluminum Frame and G-90 Galvanized Tie Rod
  • For Use WithVertical Mounted Exhaust Fans
  • Number of Panels1
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Compliance and Restrictions



This model is a rear flanged exhaust shutter for areas where corrosion may be a problem. The frame is mill finish aluminum. The blades have a white enamel finish and a galvanized reinforcement strip across the top of each blade for added strength and counter balancing efficiency. The blades have a felt seal on the leading edge for quiet closing and better protection from the weather. Ideal for use with direct-drive or belt-driven exhaust fans.

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  • 3C308

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Rated 4 out of 5 by 1reviewer.
Rated 4 out of 5 by good shutter I have two of these shutters and the older one which has worked for over 20 years still works like a champ, the newer one (one year) sticks in the 1/2 open position nearly all the time. I have tried re-positioning the shutter and lubricating the shutter pins(which works for a little while) but it always goes back to sticking half open. ...........annoying. March 22, 2012
  • 2015-10-06T20:03:13.863-05:00
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