Duct Connectors
Duct connectors connect the furnace to the ductwork. If the air condition is a separate unit and used the same ductwork, then a damper will need to be installed below the furnace to keep air from flowing back up.
7900-6771 Coleman damperPart # 7900-6771 $79.00 | Coleman duct connectorPart # 7990-xxxx $44.00 | |