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iO HVAC Controls, HD - 09, HD Series 9" Round Heavy-Duty Two-Position Zone Damper
Features:
The HD Series dampers are extruded aluminum parallel blade dampers with a 24 volt spring return actuator. The HD Series dampers can be installed in any position. They are rated for duct systems with less than 1.0" WC. The damper has a simple adjustment for setting the minimum position.
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