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The M&M Manufacturing 507D5 Ductboard Starting Collar with Quadrant Damper is designed for efficient airflow management in HVAC systems. This sheet metal component is used to connect round duct pipes to ductboard, providing a secure and reliable fit.
This collar ensures a solid connection between round duct pipes and ductboard, facilitating proper airflow within the HVAC system. The built-in quadrant damper allows for easy airflow adjustments.
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