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The IO HVAC CONTROLS HD-NA-1816 is an 18 x 16 inch two-position zone damper without an actuator and a 5/8-1/2 inch shaft. This damper is designed for residential applications. Actuators are installed on the 2nd dimension.
The IO HVAC CONTROLS HD-NA-1816 is a zone damper designed for residential HVAC systems, controlling airflow with a two-position mechanism.
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