Ewc Rectangular Shape
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 24X16 ND-RSD NO Rectangular Damper | 24X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6f2cd73d-ddbb-4fc1-b237-4dbfed912b0f_medium.png?v=1713902494)
24X16 ND-RSD NO | Rectangular Damper | 24X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X16 ND-RSD NO
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![EWC Controls 24X14 ND-RSD NO Rectangular Damper | 24X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f3e7f0ef-4cd5-4b45-99cf-c08aec01d712_medium.png?v=1713902451)
24X14 ND-RSD NO | Rectangular Damper | 24X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X14 ND-RSD NO
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![EWC Controls 22X20 ND-RSD NO Rectangular Damper | 22X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_bd858eb5-41de-4ad6-8281-29d4dc95c8a8_medium.png?v=1713902443)
22X20 ND-RSD NO | Rectangular Damper | 22X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X20 ND-RSD NO
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![EWC Controls 22X14 ND-RSD NO Rectangular Damper | 22X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_615d4ec6-966c-4217-9749-e30757b8bf0d_medium.png?v=1713902431)
22X14 ND-RSD NO | Rectangular Damper | 22X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X14 ND-RSD NO
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![EWC Controls 20X20 ND-RSD NO Rectangular Damper | 20X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a8526fbe-1733-49c8-902b-483517a4cdb3_medium.png?v=1713902432)
20X20 ND-RSD NO | Rectangular Damper | 20X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X20 ND-RSD NO
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![EWC Controls 20X12 ND-RSD NO Rectangular Damper | 20X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6cae7241-2850-42bd-959c-2beebc24c396_medium.png?v=1713902419)
20X12 ND-RSD NO | Rectangular Damper | 20X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X12 ND-RSD NO
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![EWC Controls 20X8 ND-RSD NO Rectangular Damper | 20X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_95d2c3a0-f94e-4451-bb97-2f7ebbfac3f8_medium.png?v=1713902406)
20X8 ND-RSD NO | Rectangular Damper | 20X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X8 ND-RSD NO
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![EWC Controls 18X6 ND-RSD NO Rectangular Damper | 18X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_595d980c-181a-47e2-ab91-b8b9cdc10d5c_medium.png?v=1713902406)
18X6 ND-RSD NO | Rectangular Damper | 18X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 18X6 ND-RSD NO
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![EWC Controls 16X16 ND-RSD NO Rectangular Damper | 16X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4b537f23-5fd9-4270-8340-6a0d142338b1_medium.png?v=1713902380)
16X16 ND-RSD NO | Rectangular Damper | 16X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X16 ND-RSD NO
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![EWC Controls 16X10 ND-RSD NO Rectangular Damper | 16X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_07a073a2-d8b6-4971-8191-1f65fbc0e133_medium.png?v=1713902437)
16X10 ND-RSD NO | Rectangular Damper | 16X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X10 ND-RSD NO
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![EWC Controls 14X14 ND-RSD NO Rectangular Damper | 14X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b7cabd84-c580-43c4-92a8-a6c502a01916_medium.png?v=1713902385)
14X14 ND-RSD NO | Rectangular Damper | 14X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X14 ND-RSD NO
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![EWC Controls 14X12 ND-RSD NO Rectangular Damper | 14X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_df4c29b1-7b58-42c8-bc87-6c5af2404c4b_medium.png?v=1713902376)
14X12 ND-RSD NO | Rectangular Damper | 14X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X12 ND-RSD NO
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![EWC Controls 14X10 ND-RSD NO Rectangular Damper | 14X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b82a1faf-ab07-4c07-b776-28745366a75c_medium.png?v=1713902355)
14X10 ND-RSD NO | Rectangular Damper | 14X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X10 ND-RSD NO
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![EWC Controls 14X8 ND-RSD NO Rectangular Damper | 14X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_621c382e-499d-4377-8595-194816a33377_medium.png?v=1713902380)
14X8 ND-RSD NO | Rectangular Damper | 14X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X8 ND-RSD NO
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![EWC Controls 14X6 ND-RSD NO Rectangular Damper | 14X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_835d87f5-22a2-4035-b004-029d2e013e1d_medium.png?v=1713902380)
14X6 ND-RSD NO | Rectangular Damper | 14X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X6 ND-RSD NO
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![EWC Controls 10X10 ND-RSD NO Rectangular Damper | 10X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_28424065-f05b-47fc-a45b-7dab4578e222_medium.png?v=1713902297)
10X10 ND-RSD NO | Rectangular Damper | 10X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X10 ND-RSD NO
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![EWC Controls 18X22 ND Rectangular Damper | 18X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_0603a9fe-7773-4588-8cea-d48eaa2373c8_medium.png?v=1710946391)
18X22 ND | Rectangular Damper | 18X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X22 ND
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![EWC Controls 16X20 ND Rectangular Damper | 16X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_8c7cdea6-c7c5-4372-9d9f-fba79f2d9ee2_medium.png?v=1710946391)
16X20 ND | Rectangular Damper | 16X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X20 ND
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![EWC Controls 14X30 ND Rectangular Damper | 14X30 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_682fd01c-c173-4c0d-bcae-6405e4434086_medium.png?v=1710946406)
14X30 ND | Rectangular Damper | 14X30 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X30 ND
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![EWC Controls 14X24 ND Rectangular Damper | 14X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_1f54d254-14b1-485e-8278-ebed1a3a3440_medium.png?v=1710946377)
14X24 ND | Rectangular Damper | 14X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X24 ND
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![EWC Controls 14X18 ND Rectangular Damper | 14X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_dd53861a-3dd1-44fd-b211-ce408614b9a2_medium.png?v=1710946385)
14X18 ND | Rectangular Damper | 14X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X18 ND
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![EWC Controls 12X30 ND Rectangular Damper | 12X30 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_f5834955-4ba9-4cfb-b440-283641282dc6_medium.png?v=1710946384)
12X30 ND | Rectangular Damper | 12X30 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X30 ND
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![EWC Controls 12X28 ND Rectangular Damper | 12X28 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_c78c477d-f4d7-4442-a42e-094424755c16_medium.png?v=1710946387)
12X28 ND | Rectangular Damper | 12X28 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X28 ND
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![EWC Controls 12X24 ND Rectangular Damper | 12X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_0b767c43-7211-4548-a20e-dee5348d8e5f_medium.png?v=1710946384)
12X24 ND | Rectangular Damper | 12X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X24 ND
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