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The IO HVAC CONTROLS HD-BM-NA-2812 is a 28" x 12" two-position zone damper with a bottom mount and no actuator, featuring a 5/8-1/2 shaft. These extruded aluminum parallel blade dampers are designed for residential applications and can be installed in any position. They are rated for duct systems less than 1.0" WC and include a simple adjustment for setting the minimum position.
This two-position zone damper is designed for easy installation and adjustment in residential duct systems.
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