The product is a 4" round damper with a key, specifically model GVL0272, made in Canada. This HVAC accessory is designed for controlling airflow in heating, ventilation, and air conditioning systems. The round shape allows for easy installation and provides efficient regulation of air movement in various industrial and commercial settings. The inclusion of a key adds a security feature to prevent unauthorized adjustment of the damper, ensuring proper airflow control for optimal system performance.

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