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The SOUTHWARK METAL MFG CO 84STWD7 is a seven-inch collar with a damper. This collar is designed for use in ductwork and HVAC applications. Made from twenty-eight gauge galvanized steel, it provides durability and strength. It is part of the 84STWD series and is ideal for installing in ventilation systems.
This collar assists in airflow control in HVAC systems and other duct applications.
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