DAYTON 2LRY9 Volume Control Damper,17-3/4"W,17-3/4"H
$202.99
17.75 In.H-W 5 In.L GStl Volume Control Dampr, Damper Application Volume Control, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 3000 fpm, Overall Height 17 3/4 in, Rough Opening Diameter Not Applicable, Rough Opening Shape...