Skip Content

16" Backdraft Damper / Wall Shutter, 16-1/2" x 16-1/2" Opening Required close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

16" Backdraft Damper / Wall Shutter, 16-1/2" x 16-1/2" Opening Required

Price $56.90 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 4C557
  • Mfr. Model # 4C557
  • NSN # 4140-00-496-8617
  • UNSPSC # 40101504
  • Catalog Page # 4103
  • Shipping Weight 4.4 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.16"
  • Overall Square19"
  • Opening Required16-1/2" x 16-1/2"
  • Frame Depth2-1/2"
  • Open Depth5-3/4"
  • Flange Width1-1/2"
  • Mounting Hole SizePrepunched
  • Free Area1.436 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
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions



This model is a rear flanged general purpose exhaust shutter. The blades have a galvanized steel reinforcement strip across the top of each blade for added strength and counter balancing efficiency. The blades also feature a felt seal on the leading edge for quiet closing and better protection from the weather. This shutter is ideal for use with direct-drive or belt-driven exhaust fans.

Repair Parts

Displaying repair parts for model:
  • 4C557

Alternate Products

Alternate Search Terms

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.