Ewc Non-spring return 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 24X10 ND-15S 24X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f85f64eb-7097-4aec-b244-09395ba59ee0_medium.png?v=1720000375)
24X10 ND-15S | 24X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 24X10 ND-15S
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![EWC Controls 24X6 ND-15S 24X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_95a5ee48-f93d-4aa8-9d90-8c36c31b46b8_medium.png?v=1720000355)
24X6 ND-15S | 24X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 24X6 ND-15S
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![EWC Controls 24X12 ND-15S 24X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_fd3719ce-4ea4-4ed4-873d-82ec0032fcda_medium.png?v=1720000423)
24X12 ND-15S | 24X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 24X12 ND-15S
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![EWC Controls 22X22 ND-15S 22X22 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_93d88729-c5b5-4b50-a80f-f197a83ea942_medium.png?v=1720000375)
22X22 ND-15S | 22X22 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X22 ND-15S
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![EWC Controls 22X18 ND-15S 22X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_69b40c6d-40d6-4095-a346-6f324d1b374f_medium.png?v=1720000325)
22X18 ND-15S | 22X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X18 ND-15S
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![EWC Controls 22X14 ND-15S 22X14 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_54b6942d-c3b1-4c59-aeba-f24470972a09_medium.png?v=1720000341)
22X14 ND-15S | 22X14 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X14 ND-15S
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![EWC Controls 22X16 ND-15S 22X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_7c613cd0-7010-4da4-b47f-48de30da7422_medium.png?v=1720000340)
22X16 ND-15S | 22X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X16 ND-15S
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![EWC Controls 22X12 ND-15S 22X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_063cb7d0-c993-4738-aed1-5970694c3911_medium.png?v=1720000356)
22X12 ND-15S | 22X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X12 ND-15S
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![EWC Controls 22X8 ND-15S 22X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_7b2ec423-8886-46a9-afcd-420e9e581d2f_medium.png?v=1720000346)
22X8 ND-15S | 22X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X8 ND-15S
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![EWC Controls 20X18 ND-15S 20X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_62daaa59-a711-4419-9bcf-7e03904f66cb_medium.png?v=1720000360)
20X18 ND-15S | 20X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X18 ND-15S
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![EWC Controls 22X10 ND-15S 22X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_ad788899-27b2-43eb-bedb-698d54e836c8_medium.png?v=1720094298)
22X10 ND-15S | 22X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X10 ND-15S
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![EWC Controls 20X16 ND-15S 20X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_4c1c2e8b-59c4-4f3a-b5bb-afd3cd97ee74_medium.png?v=1720000408)
20X16 ND-15S | 20X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X16 ND-15S
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![EWC Controls 22X6 ND-15S 22X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_1d9eb236-b634-4b3f-b28c-9b3a01250be9_medium.png?v=1720000356)
22X6 ND-15S | 22X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X6 ND-15S
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![EWC Controls 20X14 ND-15S 20X14 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_4d93c2c9-e9b4-4ded-9041-f5af499f44e4_medium.png?v=1720000408)
20X14 ND-15S | 20X14 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X14 ND-15S
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![EWC Controls 20X20 ND-15S 20X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_4b48c7dd-3e20-4cfe-b8e5-66f50a734b2f_medium.png?v=1720094294)
20X20 ND-15S | 20X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X20 ND-15S
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![EWC Controls 20X12 ND-15S 20X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_eeaf1d3c-c089-48e2-8fc9-2fb0287db780_medium.png?v=1720000346)
20X12 ND-15S | 20X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X12 ND-15S
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![EWC Controls 20X10 ND-15S 20X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_922a1ec2-0482-493f-b8cf-eb10ade9a7c1_medium.png?v=1720000320)
20X10 ND-15S | 20X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X10 ND-15S
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![EWC Controls 20X6 ND-15S 20X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_71693991-d1cf-40fc-a25f-ca902a36bfd9_medium.png?v=1720000340)
20X6 ND-15S | 20X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 20X6 ND-15S
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![EWC Controls 18X14 ND-15S 18X14 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f26fa4b0-6489-41c2-9a41-3b83c19af2f1_medium.png?v=1720000350)
18X14 ND-15S | 18X14 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X14 ND-15S
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![EWC Controls 18X8 ND-15S 18X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_ce2eeead-b35e-47ab-992e-8c3a24bec03e_medium.png?v=1720000350)
18X8 ND-15S | 18X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X8 ND-15S
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![EWC Controls 18X18 ND-15S 18X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a404c255-0f1f-4bcf-b877-fc94ca6e16c3_medium.png?v=1719987637)
18X18 ND-15S | 18X18 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X18 ND-15S
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![EWC Controls 18X6 ND-15S 18X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_46d7eb6d-510d-41a7-b727-34838aaf03c7_medium.png?v=1720000350)
18X6 ND-15S | 18X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X6 ND-15S
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![EWC Controls 18X16 ND-15S 18X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_d9880adc-850b-4736-9f45-a5809b14ce95_medium.png?v=1720000340)
18X16 ND-15S | 18X16 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X16 ND-15S
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![EWC Controls 18X12 ND-15S 18X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_11f46f75-c1b7-4423-a8e7-e3be95f38548_medium.png?v=1720000335)
18X12 ND-15S | 18X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X12 ND-15S
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