DAYTON 4FZJ4 12 in Backdraft Damper / Wall Shutter, 12-1/2 in x 12-1/2 in
$197.99
15 In.H-W 5 1/4 In.L SS Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Stainless Steel, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 15 in, Rough Opening Diameter 12 1/2...