Product
Damper
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Backdraft Damper
Model
A
B
C
(Nominal)
Gauge
BDD4"
2.3
2.9
4
20
BDD6"
2.7
3.9
6
20
BDD8"
3.5
5.3
8
20
BDD10"
3.5
6.1
10
20
BDD12"
3.5
7.0
12
20
Spring Loaded Backdraft Dampers
All dimensions in inches
Features & Benefits
- Neoprene damper seal minimizes leakage
- Requires from 0.04 to 0.08 inches wg pressure to open
- Simple installation in any position - entire assembly inserts into duct