Ductboard Collar with Damper 2″ Tabs

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