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The IO HVAC CONTROLS SD-2018 is a 20" x 18" Auxiliary Zone Damper. This rectangular damper is designed for commercial applications. It is used to control airflow within a specific zone of a building's HVAC system.
The SD-2018 auxiliary zone damper is designed for commercial HVAC systems to control airflow.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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