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The M&M Manufacturing 507D12 is a ductboard starting collar with a quadrant damper, designed for efficient air distribution in HVAC systems. This collar has a diameter of twelve inches, making it suitable for a wide range of duct applications. The built-in quadrant damper allows for precise airflow control, promoting better energy efficiency and performance.
This product is ideal for HVAC installers and contractors who require quality components for duct systems.
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