how to install damper
louvers
duct size Price Each $
8 x 4 24.95
8 x 6 24.95
8 x 8 24.95
10 x 4 24.95
10 x 6 24.95
10 x 8 24.95
10 x 10 24.95
12 x 4 24.95
12 x 6 24.95
12 x 8 24.95
12 x 10 24.95
12 x 12 24.95
14 x 4 24.95
14 x 6 24.95
14 x 8 24.95
14 x 12 24.95