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The Mitchell Metal Products MM-3499 is a ductboard collar designed for use with R4, R6, and R8 duct systems. This collar includes a damper for effective airflow control. It is suitable for various HVAC applications.
This ductboard collar provides a reliable solution for connecting ducts and improving 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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