Connects into the ceiling support box or finishing collar and extends down to fit into stovepipe for a drip-free connection to a DuraTech, DuraPlus, DuraPlus HTC, or DuraLiner Chimney system. Provides a strong mechanical connection. Adapter will work with all 6” - 8” DuraPlus, 6” - 8” DuraPlus HTC, and 7” - 8” DuraTech installations. Adapter will work with 5” - 6” DuraTech Ceiling Support Box installations only.