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The M&M Manufacturing 50-22 is a sheet metal duct starting collar. This rectangular collar is made from 26-gauge ASTM A653 CS Type B hot-dip galvanized steel. It measures twenty-two inches in width and eight inches in height. The collar features an offset body pattern and includes S-lock and drive, with a two-inch rise. It complies with ASHRAE, HARDI, ADI, and NHRAW standards.
This duct collar is designed for HVAC applications, ensuring proper airflow and ventilation in duct systems.
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