Round manual dampers 4 Size (in)
Round manual dampers for HVAC systems. For controlling airflow in round ductwork. Butterfly or louvered types that you can buy now at Blackhawk Supply.
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BH-04 | 4" Round Horizontal Barometric Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: BH-04
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