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 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 18X20 ND Rectangular Damper | 18X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_278cf662-69ec-4cfc-8eb7-3209cbf6a78c_medium.png?v=1720000452)
18X20 ND | Rectangular Damper | 18X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X20 ND
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![EWC Controls 16X26 ND Rectangular Damper | 16X26 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_1161faa7-e491-408d-96c0-031f36fae6cb_medium.png?v=1720000437)
16X26 ND | Rectangular Damper | 16X26 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X26 ND
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![EWC Controls 16X24 ND Rectangular Damper | 16X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_1903dbc6-2538-470f-aed3-306c48eec4d3_medium.png?v=1720000437)
16X24 ND | Rectangular Damper | 16X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X24 ND
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![EWC Controls 12X18 ND Rectangular Damper | 12X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_4d07cbfb-b6a3-4244-83aa-53faf4398f70_medium.png?v=1720000408)
12X18 ND | Rectangular Damper | 12X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X18 ND
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![EWC Controls 12X14 ND Rectangular Damper | 12X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f0263dc9-8f24-4fbf-b1bb-2759c0cd4459_medium.png?v=1720000468)
12X14 ND | Rectangular Damper | 12X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X14 ND
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![EWC Controls 10X12 ND Rectangular Damper | 10X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_d352c82e-b026-408d-8c4f-c3a306ac5b24_medium.png?v=1720000414)
10X12 ND | Rectangular Damper | 10X12 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 10X12 ND
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![EWC Controls 30X18 ND Rectangular Damper | 30X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_b83c4b54-fece-4eb8-867a-7686e02f63ab_medium.png?v=1720000571)
30X18 ND | Rectangular Damper | 30X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X18 ND
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![EWC Controls 24X24 ND Rectangular Damper | 24X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_cfe028f6-ef83-42c8-9b75-8ff3b13f90c4_medium.png?v=1720000487)
24X24 ND | Rectangular Damper | 24X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X24 ND
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![EWC Controls 24X12 ND Rectangular Damper | 24X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2f4d6da2-865f-4460-917b-d7a14a6cb6b9_medium.png?v=1720000513)
24X12 ND | Rectangular Damper | 24X12 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X12 ND
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![EWC Controls 22X22 ND Rectangular Damper | 22X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f4284112-22a1-413a-9765-e2f816c1d8cb_medium.png?v=1720094321)
22X22 ND | Rectangular Damper | 22X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 22X22 ND
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![EWC Controls 22X12 ND Rectangular Damper | 22X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_abe26ed9-3639-48ef-ad88-24ec61a951d3_medium.png?v=1720000507)
22X12 ND | Rectangular Damper | 22X12 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 22X12 ND
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![EWC Controls 22X8 ND Rectangular Damper | 22X8 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_cf604803-7022-42af-8cc9-2c65a9104359_medium.png?v=1720000492)
22X8 ND | Rectangular Damper | 22X8 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 22X8 ND
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![EWC Controls 20X16 ND Rectangular Damper | 20X16 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f844292f-441a-4ea8-aacd-eb1435492b6b_medium.png?v=1720000482)
20X16 ND | Rectangular Damper | 20X16 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X16 ND
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![EWC Controls 20X8 ND Rectangular Damper | 20X8 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_395ed5df-bee2-49a5-ad46-fae33cee8bff_medium.png?v=1720000487)
20X8 ND | Rectangular Damper | 20X8 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X8 ND
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![EWC Controls 18X14 ND Rectangular Damper | 18X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_439a2f18-f492-4345-8145-b3b981513290_medium.png?v=1720000452)
18X14 ND | Rectangular Damper | 18X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X14 ND
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![EWC Controls 16X14 ND Rectangular Damper | 16X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_5e05f66c-ef30-4f5d-8f3c-55d36151f920_medium.png?v=1720000442)
16X14 ND | Rectangular Damper | 16X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X14 ND
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![EWC Controls 16X6 ND Rectangular Damper | 16X6 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_eb160d11-f7db-44b0-8449-33f1cde3c50a_medium.png?v=1720000452)
16X6 ND | Rectangular Damper | 16X6 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X6 ND
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![EWC Controls 12X18 ND-15S 12X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_61f801dd-bd72-4cd8-a483-a41d5abc06ba_medium.png?v=1720000330)
12X18 ND-15S | 12X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 12X18 ND-15S
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![EWC Controls 8X20 ND-15S 8X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_aaca50ad-5b11-43d1-8c64-eeeb2296bf9e_medium.png?v=1720000423)
8X20 ND-15S | 8X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 8X20 ND-15S
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![EWC Controls 16X12 ND-15S 16X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_3453db8c-0c1f-4f2a-bca1-bddd8a68c449_medium.png?v=1720000370)
16X12 ND-15S | 16X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 16X12 ND-15S
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![EWC Controls 10X18 ND-15S 10X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_aa7a8dde-539b-4bc1-a953-1617b4bece17_medium.png?v=1720000340)
10X18 ND-15S | 10X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10X18 ND-15S
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![EWC Controls 10X16 ND-15S 10X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2988f1cc-d98e-43eb-b02b-30a38d75f0b3_medium.png?v=1720000398)
10X16 ND-15S | 10X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10X16 ND-15S
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![EWC Controls 10X10 ND-15S 10X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_40a91c17-0930-4f91-a2ca-b50012c7ab77_medium.png?v=1720000366)
10X10 ND-15S | 10X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10X10 ND-15S
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