Ductboard Collar with Damper 2″ Tabs
- 405D-2
- Equivalent Length 35' and add 0.03 pressure loss device.
- Sizes 4"-7", 9"; packed 24 per box
- Size 10"; packed 18 per box
- Sizes 8", 12"; packed 12 per box
- Size 14"; packed 10 per box
- Size 16"; packed 8 per box
- Size 18"; packed 6 per box