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The M&M 50810 is a round metal start collar designed for ductboard. This product is essential for HVAC installations, allowing for easy connections between ductwork and registers or grilles.
This start collar helps create a tight seal for efficient airflow in duct systems.
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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