DAYTON 2TGC4 Square Fire Damper,15-3/4 In. W
$97.39
15.75 In.H-W 3.7 In.L Squ Gravity Fire Dampr, Damper Application Fire, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity None, Overall Height 16 in, Rough Opening Diameter Not Applicable, Rough Opening Shape Square, Fits Fan...