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The IO HVAC CONTROLS HD-BM-NA-3018 is a 30 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft. These "HD" Series dampers are extruded aluminum parallel blade dampers. They are rated for duct systems less than 1.0" WC and have a simple adjustment for setting the minimum position.
The IO HVAC Controls HD-BM-NA-3018 is a 30 x 18 two-position zone damper that is ready for installation in any position.
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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