ewc
We offer over 70 EWC HVAC products, including Bypass Dampers, Damper Controls & Accessories, Rectangular Dampers, Round Dampers, and Zoning Panels.
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![EWC Controls 16X14 ND-RSD NO Rectangular Damper | 16X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4941406a-23ef-449a-812c-632d88de8cae_medium.png?v=1720094298)
16X14 ND-RSD NO | Rectangular Damper | 16X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X14 ND-RSD NO
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![EWC Controls 16X8 ND-RSD NO Rectangular Damper | 16X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0f71488a-177d-413f-ac03-4da91d50c54d_medium.png?v=1720000469)
16X8 ND-RSD NO | Rectangular Damper | 16X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X8 ND-RSD NO
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![EWC Controls 12X12 ND-RSD NO Rectangular Damper | 12X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_830dd105-c021-44e8-b992-7efc38e77d23_medium.png?v=1720000452)
12X12 ND-RSD NO | Rectangular Damper | 12X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X12 ND-RSD NO
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![EWC Controls 12X6 ND-RSD NO Rectangular Damper | 12X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_01a7f190-cae7-4313-8e8d-673d42cbf06e_medium.png?v=1720000423)
12X6 ND-RSD NO | Rectangular Damper | 12X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X6 ND-RSD NO
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![EWC Controls 10X6 ND-RSD NO Rectangular Damper | 10X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_43e85a78-af35-4508-9310-555d51fea5d5_medium.png?v=1720000419)
10X6 ND-RSD NO | Rectangular Damper | 10X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X6 ND-RSD NO
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![EWC Controls 14X16 ND Rectangular Damper | 14X16 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_e22f1fbf-655e-4116-93ca-eeebc5aa70c4_medium.png?v=1720000442)
14X16 ND | Rectangular Damper | 14X16 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X16 ND
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![EWC Controls 12X20 ND Rectangular Damper | 12X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_93b28d2b-25ae-4785-8c61-5738c3e6340b_medium.png?v=1720000403)
12X20 ND | Rectangular Damper | 12X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X20 ND
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![EWC Controls 10X22 ND Rectangular Damper | 10X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_6d3d2f87-d0fd-4b8b-9565-6b27960f92ac_medium.png?v=1720000403)
10X22 ND | Rectangular Damper | 10X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 10X22 ND
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![EWC Controls 8X30 ND Rectangular Damper | 8X30 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2471b802-86ed-438c-bbb6-5c43c2831602_medium.png?v=1720000542)
8X30 ND | Rectangular Damper | 8X30 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8X30 ND
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![EWC Controls 8X24 ND Rectangular Damper | 8X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a6f5b9bf-0a42-4121-9e2b-379b38859642_medium.png?v=1719987550)
8X24 ND | Rectangular Damper | 8X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8X24 ND
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![EWC Controls 30X24 ND Rectangular Damper | 30X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_10b423fb-d68c-4f1e-883e-efca5b8dff4a_medium.png?v=1720000561)
30X24 ND | Rectangular Damper | 30X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X24 ND
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![EWC Controls 30X16 ND Rectangular Damper | 30X16 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_ec09cdd1-ccc3-45d5-805c-44cd5c3cce37_medium.png?v=1720000551)
30X16 ND | Rectangular Damper | 30X16 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X16 ND
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![EWC Controls 30X6 ND Rectangular Damper | 30X6 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_b8fd9fb4-c67b-41bf-bee2-6975b6f0da4e_medium.png?v=1720000513)
30X6 ND | Rectangular Damper | 30X6 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X6 ND
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![EWC Controls 28X10 ND Rectangular Damper | 28X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_ad96c3a9-9c73-4c4e-90f4-db0ab8e207d0_medium.png?v=1720000492)
28X10 ND | Rectangular Damper | 28X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X10 ND
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![EWC Controls 24X18 ND Rectangular Damper | 24X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_092f7276-9dbb-4c2d-adf7-63152e2b68df_medium.png?v=1720000512)
24X18 ND | Rectangular Damper | 24X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X18 ND
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![EWC Controls 24X14 ND Rectangular Damper | 24X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_cc452c48-e916-4cba-acb7-5fa45c9b9269_medium.png?v=1720000496)
24X14 ND | Rectangular Damper | 24X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X14 ND
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![EWC Controls 24X8 ND Rectangular Damper | 24X8 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_73118aee-cb94-4f8f-a174-91c0b9bcf26b_medium.png?v=1720000496)
24X8 ND | Rectangular Damper | 24X8 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X8 ND
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![EWC Controls 22X14 ND Rectangular Damper | 22X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a12dddeb-84cb-48e3-987d-3a3064bd14ae_medium.png?v=1720094307)
22X14 ND | Rectangular Damper | 22X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 22X14 ND
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![EWC Controls 20X14 ND Rectangular Damper | 20X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_c83a4e39-0733-48f4-b0ba-228f4ce938d0_medium.png?v=1720000463)
20X14 ND | Rectangular Damper | 20X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X14 ND
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![EWC Controls 14X14 ND Rectangular Damper | 14X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_7d53f3f3-155f-41b4-ac53-3f97395f4adb_medium.png?v=1720000448)
14X14 ND | Rectangular Damper | 14X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X14 ND
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![EWC Controls 12X10 ND Rectangular Damper | 12X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_ae8e5569-78cb-4ff5-b9ba-0b0392fa0e73_medium.png?v=1720000424)
12X10 ND | Rectangular Damper | 12X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X10 ND
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![EWC Controls 10 PRD-RD 10 Inch Round Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/bypass1_59c2469d-f9d8-450f-a14f-7765666156c8_medium.jpg?v=1720000418)
10 PRD-RD | 10 Inch Round Manual Bypass Damper | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10 PRD-RD
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![EWC Controls 14X24 ND-15S 14X24 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_59dc6496-f7c7-4959-ade2-f39acf187d71_medium.png?v=1720000366)
14X24 ND-15S | 14X24 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 14X24 ND-15S
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![EWC Controls 12X30 ND-15S 12X30 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2178f6be-1878-43c0-972d-8d51a43f0c3e_medium.png?v=1720000320)
12X30 ND-15S | 12X30 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 12X30 ND-15S
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