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The M&M 507DR89 is a nine-inch start collar with a damper. This product is made from thirty-gauge galvanized steel. It is commonly used in HVAC systems to manage airflow effectively.
This start collar is suitable for use in various HVAC applications. The built-in damper allows for precise control of airflow, enhancing system efficiency.
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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