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The HD-NA-1307 is a 13" x 7" Two-Position Zone Damper-No Actuator with a 5/8-1/2 Shaft manufactured by IO HVAC CONTROLS. This rectangular damper is designed for residential applications. It is used to control airflow within a zone in HVAC systems.
The HD-NA-1307 is a rectangular zone damper without an actuator, designed for residential HVAC systems.
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