Category Features Company
Damper,Roof Mount.
$141.99
Damper,Backdraft.
$52.99
8" Back Draught Damper.
$66.49
.x 11 In. Auto Exhaust Damper,Model 411,11 In.
$33.99
$47.19
Damper,Vert/Horiz Mtg,13 3/4 Sq.
$51.69
THE FRAME IS GALVANIZED STEEL WITH ALUMINUM BLADES. SPRING ASSISTED TO ALLOW THE BLADES TO OPEN QUICKLY.
$156.99