Ewc Spring return (no) Spring return
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 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 12X24 ND-RSD NO Rectangular Damper | 12X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d31bbfab-408b-411f-b3f2-ada122d61955_medium.png?v=1720000413)
12X24 ND-RSD NO | Rectangular Damper | 12X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X24 ND-RSD NO
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![EWC Controls 12X14 ND-RSD NO Rectangular Damper | 12X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_45d306e9-7da4-42e8-993a-5f8ddea840b9_medium.png?v=1720000418)
12X14 ND-RSD NO | Rectangular Damper | 12X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X14 ND-RSD NO
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![EWC Controls 12X10 ND-RSD NO Rectangular Damper | 12X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2668a764-cce8-44a6-b5b1-c1c7f9fc1a7e_medium.png?v=1720000428)
12X10 ND-RSD NO | Rectangular Damper | 12X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X10 ND-RSD NO
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![EWC Controls 20X22 ND-RSD NO Rectangular Damper | 20X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_5f988c54-0cd9-440d-ad9a-21480db21643_medium.png?v=1719987790)
20X22 ND-RSD NO | Rectangular Damper | 20X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X22 ND-RSD NO
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![EWC Controls 16X20 ND-RSD NO Rectangular Damper | 16X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9c86dc2b-5d68-4105-89a0-8e3d2cee85b2_medium.png?v=1720000428)
16X20 ND-RSD NO | Rectangular Damper | 16X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X20 ND-RSD NO
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![EWC Controls 12X20 ND-RSD NO Rectangular Damper | 12X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_1fc05231-2c3b-4f8c-8468-23f693639b27_medium.png?v=1720000433)
12X20 ND-RSD NO | Rectangular Damper | 12X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X20 ND-RSD NO
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![EWC Controls 10X12 ND-RSD NO Rectangular Damper | 10X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_94a9ea21-1871-4b4e-985a-ed3acc34a964_medium.png?v=1720000387)
10X12 ND-RSD NO | Rectangular Damper | 10X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X12 ND-RSD NO
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![EWC Controls 8X14 ND-RSD NO Rectangular Damper | 8X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6fc20fbf-03e7-40b3-a7ac-ee460184e3a0_medium.png?v=1720000556)
8X14 ND-RSD NO | Rectangular Damper | 8X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X14 ND-RSD NO
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![EWC Controls 30X30 ND-RSD NO Rectangular Damper | 30X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_7d00116b-82c6-46e5-ad10-023e17b77e6f_medium.png?v=1720000517)
30X30 ND-RSD NO | Rectangular Damper | 30X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X30 ND-RSD NO
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![EWC Controls 30X24 ND-RSD NO Rectangular Damper | 30X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_7655577a-94c4-4c0c-8a5a-94b502edbf6b_medium.png?v=1720000518)
30X24 ND-RSD NO | Rectangular Damper | 30X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X24 ND-RSD NO
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![EWC Controls 30X14 ND-RSD NO Rectangular Damper | 30X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_88fc4215-c4f9-41c7-8405-e9037ffffcdb_medium.png?v=1720000506)
30X14 ND-RSD NO | Rectangular Damper | 30X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X14 ND-RSD NO
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![EWC Controls 24X8 ND-RSD NO Rectangular Damper | 24X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN] | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_816f2d75-5d55-40ba-a3e7-9eb24ad9171b_medium.png?v=1720000478)
24X8 ND-RSD NO | Rectangular Damper | 24X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN] | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X8 ND-RSD NO
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![EWC Controls 20X14 ND-RSD NO Rectangular Damper | 20X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f01fc4de-2483-4245-90b1-634c896b7fd8_medium.png?v=1720000468)
20X14 ND-RSD NO | Rectangular Damper | 20X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X14 ND-RSD NO
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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 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 18X20 ND-RSD NO Rectangular Damper | 18X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9db26495-d6d0-46d6-8eb6-181824a7fb3a_medium.png?v=1720000442)
18X20 ND-RSD NO | Rectangular Damper | 18X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X20 ND-RSD NO
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![EWC Controls 16X28 ND-RSD NO Rectangular Damper | 16X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_652e7a2e-6755-4645-81ca-e2e07ad3aa63_medium.png?v=1720000441)
16X28 ND-RSD NO | Rectangular Damper | 16X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X28 ND-RSD NO
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![EWC Controls 14X28 ND-RSD NO Rectangular Damper | 14X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_dca9002d-844f-4e95-8fcb-f69cb41e843b_medium.png?v=1720000441)
14X28 ND-RSD NO | Rectangular Damper | 14X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X28 ND-RSD NO
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![EWC Controls 14X26 ND-RSD NO Rectangular Damper | 14X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_308e4dfb-60d8-4d25-a04f-fd79b68850c6_medium.png?v=1720000441)
14X26 ND-RSD NO | Rectangular Damper | 14X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X26 ND-RSD NO
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