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The Mitchell Metal Products 34820 is a 20-inch ductboard starting collar crafted for connections with R8 2-inch ductboard. Made from galvanized steel, this fitting belongs to the 348 Series and is intended for single wall applications within HVAC ductwork systems.
This ductboard collar is ideal for creating effective and secure duct systems.
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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