DAYTON 2TGD6 Square Fire Damper,11-3/4 In. W
$90.79
11.75 In.H-W 3.7 In.L Square Spring Fire Dampr, Damper Application Fire, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity None, Overall Height 11 3/4 in, Rough Opening Diameter Not Applicable, Rough Opening Shape Square, Fits...