Backdraft Damper, Vert/Horiz Mtg, 19 3/4Sq
Mfr # 3HHL6
Zoro # G0541581
product price: $66.69
/eaKey Features
Type
No Flange, Horizontal or Vertical Mount
Damper Size (In.)
19-3/4 x 19-3/4
Overall Size (In.)
19-3/4 x 19-3/4
Includes
Pre-Punched Conduit Hole Knock-Out; Felted Edges for Quiet Operation
Max. Velocity (FPM)
2,000 fpm
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Product Information
MFR #
3HHL6
Zoro #
G0541581
UPC #
190735289532
Country of Origin
United States
Dimensions
Damper Size (In.)
19-3/4 x 19-3/4
Overall Size (In.)
19-3/4 x 19-3/4
Overall Height
19 3/4 in
Overall Width
19 3/4 in
Overall Length
4 1/2 in
Rough Opening Diameter
20 in
Rough Opening Width
20 in
Frame Depth
2 in
For Nominal Duct Diameter
20 in
Fits Fan Diameter
20 in
Rough Opening Length
20 in
Blade Material Thickness
26 ga
Frame Material Thickness
20 ga
Description
19.8 In.H-W 4.5 In.L Alu Spring Bkdrft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 20 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 19 3/4 in, Rough Opening Diameter 20 in, Rough Opening Shape Square, Fits Fan Diameter 20 in, For Duct Shape Square, Free Area 2.5 sq ft, Overall Width 19 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 20 in, Maximum Pressure 1 in wc
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