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The Crown Products 7109 is a nine-inch start collar equipped with a Therma Seal gasket for rectangular duct applications. This collar is designed to ensure a secure connection and maintain airflow efficiency in HVAC systems. Sold by the piece, it arrives in cartons of fifteen, making it suitable for both small and large projects.
This start collar is essential for starting airflow in ductwork installations, optimizing the HVAC performance. It is reliable and meets industry standards.
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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