Motorized dampers Spring return Spring return
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![EWC Controls 8 RSD 8 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_d453d674-d428-461c-aa3b-8cd8c94a73f6_medium.png?v=1720000527)
8 RSD | 8 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 8 RSD
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![EWC Controls 7 RSD 7 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_e93b57ac-b127-480f-aa02-4b04c159efd7_medium.png?v=1719987489)
7 RSD | 7 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 7 RSD
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![EWC Controls 9 RSD 9 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_0f855810-83c1-4741-9b56-bc6a2a781917_medium.png?v=1720000546)
9 RSD | 9 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 9 RSD
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![EWC Controls 4 RSD 4 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_b6e0ec1f-ccd0-47a3-84e1-318005deb338_medium.png?v=1720094311)
4 RSD | 4 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 4 RSD
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![EWC Controls 16 RSD 16 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_157bdbe9-92dd-4d15-8f4b-3e162523101b_medium.png?v=1720000433)
16 RSD | 16 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 16 RSD
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![EWC Controls 12 RSD 12 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_medium.png?v=1720000423)
12 RSD | 12 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 12 RSD
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![EWC Controls 10 RSD 10 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_cd2af79a-a40a-4bf4-9f28-4454ba9502e3_medium.png?v=1720000371)
10 RSD | 10 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 10 RSD
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![EWC Controls 6 RSD 6 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_72ddde36-42d7-4ffa-89c2-540ae9f49fd0_medium.png?v=1719987612)
6 RSD | 6 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 6 RSD
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![EWC Controls 5 RSD 5 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_cb134422-336e-4429-89b0-d85342c56424_medium.png?v=1720000551)
5 RSD | 5 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 5 RSD
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