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The SOUTHWARK METAL 97FC20 is a flex duct connector designed to join flexible ductwork sections within forced-air HVAC systems. Flex duct connectors provide a secure, airtight transition point between flexible duct runs, helping maintain system airflow efficiency and reducing uncontrolled air leakage at joints. This type of fitting is a standard component in residential and light commercial duct installations, and is typically handled by licensed HVAC technicians or sheet metal contractors during new construction or duct retrofit work.
This connector is suited for use in forced-air heating and cooling systems where flexible duct is routed through attics, crawl spaces, basements, or between floor joists. It serves as a reliable coupling in applications where rigid duct transitions to flex duct or where two flex duct segments must be joined. Installation typically follows local mechanical code requirements and ACCA Manual D duct design standards.
Designed as an OEM-style replacement and standard-fit connector for flexible ductwork used in residential and light commercial forced-air HVAC systems.
Installation should be performed by a qualified HVAC technician or sheet metal contractor in accordance with local mechanical codes and SMACNA duct construction standards. Always shut down and de-energize the air handling system before performing duct work. Secure the flex duct to the connector using approved draw bands or clamps, and seal all joints with UL 181-rated mastic or listed foil tape to meet air leakage requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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