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The Rectorseal 81965 is a duct flange measuring 16 inches designed for use in air distribution systems. This flange is made of durable PVC material and is part of the essential components for HVAC installations. It helps create a secure connection in ductwork systems, ensuring proper airflow and efficiency during operation.
This flange includes a three-eighths inch lip that drops below the ceiling, which requires installers to cut an appropriate hole. This design feature provides flexibility in installation and ensures a snug fit in various applications.