The Master Flow 16 in. Spin-In Starting Collar can be used to transition from a flat metal surface to round pipe or insulated flexible ducts. Collar simply twists into place. This starting collar is made of galvanized steel for durability.
- Made of galvanized steel
- Helps transition from flat metal surface to round pipes or insulated flexible ducts
- Twist into place
- Crimped end for easy attachment of metal pipe or insulated flexible duct
- Seal seams with code-approved mastic, sealant or duct tape (sold separately)