Dayton 45C663 - 60 in 63"H-W 6 1/4"L Extrd Alu Backdraft Dampr, 60-1/2 in x 60-1/2 in, Aluminum
Dayton 45C663 - 60 in 63"H-W 6 1/4"L Extrd Alu Backdraft Dampr, 60-1/2 in x 60-1/2 in, Aluminum
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63 In.H-W 6 1/4 In.L Extrd Alu Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 2, Maximum Air Velocity 3000 fpm, Overall Height 63 in, Rough Opening Diameter 60 1/2 in, Rough Opening Shape Square, Fits Fan Diameter 60 in, For Duct Shape Not Applicable, Free Area 20.4 sq ft, Overall Width 63 in, Frame Material Thickness 0.8 in, Overall Length 6 1/4 in, Connection Type Not Applicable, Frame Depth 3 in
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