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The M&M Manufacturing 504MSD14 is a fourteen-foot spin in starting collar designed for efficient airflow management in ventilation systems. This product is essential for connecting round duct systems to an air handling unit or other ventilation equipment.
The spin in starting collar enhances the airflow transition from the duct to the unit, ensuring effective air distribution.
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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