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

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

product price: $73.39
/ea
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Key Features

  • Shutter Mounting Position Vertical
  • Shutter Mounting Location Wall
  • Shutter Construction Material G-90 Galvanized Steel Frame and 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
Flange Width 1 1/2 in
Mounting Hole Size Prepunched
Frame Depth 2 1/2 in
Open Depth 5 3/4 in
Overall Height 21 in
Overall Width 21 in
Overall Length 5 3/4 in
Mounting Hole Diameter 1/4 in
Frame Opening Height 18 in
Rough Opening Length 18 1/2 in
Overall Diameter 21 in
Rough Opening Diameter 18 1/2 in
Frame Opening Width 18 in
Fits Fan Diameter 18 in
Rough Opening Width 18.5 in

Description

21 In.H-W 5.75 In.L Alu Wall Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2500 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 20 ga, Overall Length 5 3/4 in, Connection Type Not Applicable, Frame Depth 2 1/2 in

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