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The Gray Metal South 7-405D is a seven inch starting collar designed for ductboard use. This product includes a damper for airflow control, ensuring efficient operation in HVAC installations. Constructed from galvanized steel, it is built to last in various environments.
This starting collar is essential for connecting ductwork to ventilation systems, providing a secure transition point.
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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