Rectangular manual dampers EWC Controls
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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![EWC Controls 20X8 ND-HD 20X8 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_7f823d94-d915-4e05-8940-87a46b5cf3e8_medium.png?v=1713902448)
20X8 ND-HD | 20X8 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X8 ND-HD
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![EWC Controls 20X10 ND-HD 20X10 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_95688c75-dfb8-4ef5-aae7-2a5f32311975_medium.png?v=1713902433)
20X10 ND-HD | 20X10 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X10 ND-HD
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![EWC Controls 20X8 PRD 20X8 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_ff4b1f39-b8f5-4fdc-a853-7b6b15692504_medium.gif?v=1713902419)
20X8 PRD | 20X8 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X8 PRD
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![EWC Controls 12X8 ND-HD 12X8 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_637b2efa-1f39-45dc-b11e-5e4e6fea5064_medium.png?v=1713902318)
12X8 ND-HD | 12X8 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X8 ND-HD
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![EWC Controls 20X12 ND-HD 20X12 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_eb1d8754-f6a8-45bb-b716-f63f19ede2be_medium.png?v=1713902437)
20X12 ND-HD | 20X12 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X12 ND-HD
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![EWC Controls 12X12 ND-HD 12X12 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_91a07a13-6616-4f93-91b5-861cc502fe43_medium.png?v=1713902351)
12X12 ND-HD | 12X12 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X12 ND-HD
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![EWC Controls 12X12 PRD 12X12 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_26954141-5c80-4918-8928-360dc516c079_medium.gif?v=1713902391)
12X12 PRD | 12X12 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X12 PRD
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![EWC Controls 12X8 PRD 12X8 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_5da146df-ee21-48e0-8f04-3135fb627e77_medium.gif?v=1713902362)
12X8 PRD | 12X8 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X8 PRD
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![EWC Controls 20X10 PRD 20X10 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_f53584fb-d2fc-4608-953f-c297fcca9dcc_medium.gif?v=1713902401)
20X10 PRD | 20X10 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X10 PRD
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![EWC Controls 20X12 PRD 20X12 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_fe598e9e-0eb0-4979-98f1-c9338eec3e72_medium.gif?v=1713902418)
20X12 PRD | 20X12 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X12 PRD
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![EWC Controls 12X10 PRD 12X10 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_5126c12d-f047-4513-af39-661cd7109ed4_medium.gif?v=1713902333)
12X10 PRD | 12X10 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X10 PRD
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![EWC Controls 12X10 ND-HD 12X10 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_345685e0-9c12-423c-bcb7-83cb6fb1f061_medium.png?v=1713902311)
12X10 ND-HD | 12X10 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X10 ND-HD
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