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The M&M 504MSDELV14214 is a fourteen-inch spin-in start collar. Made from twenty-eight gauge galvanized steel, it features a damper and two-inch standoff. This product is designed for reliable installation in HVAC applications.
This start collar enhances airflow management and supports duct 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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