Motorized dampers Round dampers Type
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![EWC Controls 14 URD 14 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_4705c0b4-7b37-4834-8abc-5a17431cf284_medium.gif?v=1720000408)
14 URD | 14 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 14 URD
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![EWC Controls 12 URD 12 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_d53a6916-66c7-4c84-aaa6-8207fa0c7418_medium.gif?v=1720000414)
12 URD | 12 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 12 URD
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![EWC Controls 10 URD 10 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_fb953534-ba59-409c-ad85-83421f3ca3ab_medium.gif?v=1720094298)
10 URD | 10 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 10 URD
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![EWC Controls 4 URD 4 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_07e7adb7-d68b-443d-b241-d537040f9794_medium.gif?v=1720094307)
4 URD | 4 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 4 URD
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![EWC Controls 16 URD 16 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_99e716bf-5282-46e5-8930-b97cf485dae3_medium.gif?v=1720000422)
16 URD | 16 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 16 URD
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![EWC Controls 6 URD-SRE120 N.C. 6 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_ea8001d4-5783-4dc9-8908-79d9a181aa23_medium.gif?v=1720000547)
6 URD-SRE120 N.C. | 6 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 6 URD-SRE120 N.C.
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![EWC Controls 8 URD 8 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_d2eecb5d-a62a-44c9-a908-fbcf81f2238f_medium.gif?v=1720094306)
8 URD | 8 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 8 URD
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![EWC Controls 10 URD-SRE120 N.C. 10 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_ed03c95b-0d25-4d71-9894-08f371bdeb7d_medium.gif?v=1720000365)
10 URD-SRE120 N.C. | 10 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10 URD-SRE120 N.C.
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![EWC Controls 8 URD-SRE120 N.C. 8 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_97241deb-2e62-4bb6-aea9-d285acdb576f_medium.gif?v=1720000571)
8 URD-SRE120 N.C. | 8 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8 URD-SRE120 N.C.
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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 6 URD-SRE120 N.O. 6 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_460ad84e-b2b4-4c1b-a0b9-fc03315861e7_medium.gif?v=1720000556)
6 URD-SRE120 N.O. | 6 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 6 URD-SRE120 N.O.
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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 URD-SRE120 N.O. 5 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_ea52578f-fe9b-4386-a3ae-959ef68a34de_medium.gif?v=1720000551)
5 URD-SRE120 N.O. | 5 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 5 URD-SRE120 N.O.
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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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![EWC Controls 18 URD-15S 18 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_31453907-512a-4d4d-a102-de34a9bc0b2b_medium.gif?v=1720038857)
18 URD-15S | 18 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18 URD-15S
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![EWC Controls 10 URD-15S 10 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_57cf131f-5249-42e2-8844-ba86fc7f6ac8_medium.gif?v=1720038860)
10 URD-15S | 10 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10 URD-15S
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![EWC Controls 8 URD-15S 8 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_cbfc54a4-0570-481a-8206-881895e38edf_medium.gif?v=1720038859)
8 URD-15S | 8 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 8 URD-15S
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![EWC Controls 20 URD-15S 20 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_74f8f80d-d78f-4f38-a9a8-83e4e005496e_medium.gif?v=1720038858)
20 URD-15S | 20 URD-15S ROUND MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20 URD-15S
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