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  • 4 in. Ductboard Collar with Damper - Hercitys
  • 4 in. Ductboard Collar with Damper - Hercitys
  • 4 in. Ductboard Collar with Damper - Hercitys
  • 4 in. Ductboard Collar with Damper - Hercitys

4 in. Ductboard Collar with Damper

$27.44
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    Description

    The Master Flow 4 in. duct-board Starting Collar is suitable for 1 in. to 1-1/2 in. duct-board plenums. It provides a transition from the plenum to round pipe or insulated flexible duct. This starting collar has a built-in damper which allows for adjusting air flow within the duct run. It can be used with duct-board, an internally lined or unlined plenum. This galvanized steel starting collar features extra-long tabs.
    • Used with duct-board thicknesses from 1 in. to 1-1/2 in. (or R-6 value)
    • Connects round pipe or insulated flexible duct to a flat surface to start a duct run
    • Built-in damper
    • Fits most HVAC types for universal application
    • Can be used with an internally lined or unlined plenum
    • Extra-long tabs
    • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
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