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The M&M Manufacturing 503ATH18 Air Tite Starting Collar connects with eighteen-inch round duct systems. It features an integrated Air Tite flange with a gasket that ensures a low-leakage seal, enhancing system efficiency. Built from twenty-six-gauge galvanized steel, this collar provides long-lasting durability.
This collar is essential for reliable duct connections, helping maintain energy efficiency in HVAC 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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