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  9. 18 in Backdraft Damper / Wall Shutter, 18-1/2 in x 18-1/2 in
Dayton

18 in Backdraft Damper / Wall Shutter, 18-1/2 in x 18-1/2 in

  • Mfr # 4FZH5

  • Zoro # G0646904

product price: $129.99
/ea
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Key Features

  • Shutter Mounting Position Vertical
  • Shutter Mounting Location Wall
  • Shutter Construction Material Extruded Aluminum Frame and Stainless Steel Tie Rods
  • Shutter Free Area 2.043 sq ft
  • Shutter Opening Required 18-1/2 in x 18-1/2 in
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Product Information

Dimensions

Shutter Overall Size 21 in x 21 in
Fits Fan Dia. 18 in
Frame Depth 3 in
Flange Width 1 1/2 in
Open Depth 6 1/4 in
Mounting Hole Size Prepunched
Overall Length 6 1/2 in
Rough Opening Width 18.5 in
Overall Diameter 21 in
Mounting Hole Diameter 1/4 in
Rough Opening Length 18 1/2 in
Frame Opening Width 18 1/2 in
Overall Width 21 in
Frame Material Thickness 0.8 in
Overall Height 21 in
Fits Fan Diameter 18 in
Frame Opening Height 18 1/2 in
Blade Material Thickness 0.8 in
Rough Opening Diameter 18 1/2 in

Description

21 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 21 in, Rough Opening Diameter 18 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 18 in, For Duct Shape Not Applicable, Free Area 2 sq ft, Overall Width 21 in, Frame Material Thickness 0.8 in, Overall Length 6 1/2 in, Connection Type Not Applicable, Frame Depth 3 in

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