Wall Backdraft Damper, Vertical Mount, 18 in Dia Fan, 21 in H x 21 in W x 6-1/4 in D, 2000 fpm
Mfr # 2C521
Zoro # G2830737
product price:Â $59.19
/eaKey Features
Shutter Mounting Position
Vertical
Shutter Mounting Location
Wall
Shutter Construction Material
G-90 Galvanized Steel Frame and Tie Rods
Shutter Free Area
2.051 sq ft
Shutter Opening Required
18-1/2 in x 18-1/2 in
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Product Information
MFR #
2C521
Zoro #
G2830737
UPC #
190735216965
Country of Origin
United States
Dimensions
Shutter Overall Size
21 in x 21 in
Fits Fan Dia.
18 in
Mounting Hole Size
Prepunched
Open Depth
6 1/4 in
Frame Depth
2 1/4 in
Flange Width
1 1/2 in
Overall Length
6 in
Rough Opening Width
18.5 in
Rough Opening Diameter
18 1/2 in
Overall Height
21 in
Frame Material Thickness
20 ga
Rough Opening Length
18 1/2 in
Overall Diameter
21 in
Overall Width
21 in
Blade Material Thickness
26 ga
Mounting Hole Diameter
1/4 in
Fits Fan Diameter
18 in
Description
21 In.H-W 6 In.L Aluminum Wall Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 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 2.1 sq ft, Overall Width 21 in, Frame Material Thickness 20 ga, Overall Length 6 in, Connection Type Not Applicable, Frame Depth 2 1/4 in
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