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The Gray Metal South 18-404DCC is an 18 inch starting collar designed for effective connection to ductwork. This product is essential for HVAC systems where ductboards are in use, ensuring a secure fit and optimal airflow.
This starting collar simplifies the installation of duct systems, providing reliability and strong performance in ventilation applications.
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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