Rectangular manual dampers 30 x 20 Size (in)
Choose from dozens of quality HVAC dampers from trusted brands like Braeburn, EWC Controls, and iO HVAC Controls, with prices starting from $170!
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![iO HVAC Controls MBD-3020-BM Manual Rectangular 30 x 20 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_363993b7-7289-4177-b561-29aa0c385324_medium.jpg?v=1708912730)
MBD-3020-BM | Manual Rectangular 30 x 20 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-3020-BM
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![iO HVAC Controls MBD-3020 Manual Rectangular 30 x 20 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_8411f87e-e18c-4c63-801f-48692619f5af_medium.jpg?v=1708912715)
MBD-3020 | Manual Rectangular 30 x 20 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-3020
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