Round dampers Rectangular Shape
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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 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 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 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 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 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 10X8 ND-15S 10X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_10c2e013-861d-4ea6-a600-07dd17bd2873_medium.png?v=1720000326)
10X8 ND-15S | 10X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10X8 ND-15S
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![iO HVAC Controls MD-1808-BM MD Series 18x08 (3) Wire Damper PO/PC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-MDXXXX_bfeff46e-e047-4ea1-a2c0-9cb94813574c_medium.jpg?v=1719992424)
MD-1808-BM | MD Series 18x08 (3) Wire Damper PO / PC | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MD-1808-BM
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![iO HVAC Controls MBD-06 iO HVAC Controls Manual Balancing Damper 6 Round with locking quad | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MBD-06_medium.jpg?v=1719992357)
MBD-06 | iO HVAC Controls Manual Balancing Damper 6 Round with locking quad | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-06
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![iO HVAC Controls EB-1810 Electronic Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-EB-XXXX_669717bc-a11e-4abe-a4b3-f68ba1bd12af_medium.jpg?v=1719992296)
EB-1810 | Electronic Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-1810
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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 8X12 ND-RSD NO Rectangular Damper | 8X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6cb50942-3919-4fdd-bad5-70e7ca9be361_medium.png?v=1720000551)
8X12 ND-RSD NO | Rectangular Damper | 8X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X12 ND-RSD NO
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![EWC Controls 26X26 ND Rectangular Damper | 26X26 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_ffec1cdc-0979-41cf-960b-06582d71c607_medium.png?v=1720000542)
26X26 ND | Rectangular Damper | 26X26 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X26 ND
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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_516b21c2-2824-4910-a8a7-a24eccc69f21_medium.png?v=1720000506)
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 28X6 ND Rectangular Damper | 28X6 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a2bf0005-a58a-4d1f-9e8f-5e3587d74c2d_medium.png?v=1720000501)
28X6 ND | Rectangular Damper | 28X6 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X6 ND
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![EWC Controls 26X16 ND Rectangular Damper | 26X16 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_db9ea990-a40d-46cc-be5f-9857997b37c9_medium.png?v=1720000496)
26X16 ND | Rectangular Damper | 26X16 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X16 ND
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![EWC Controls 12X30 ND Rectangular Damper | 12X30 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_133dfd7a-ba07-454d-918d-20ca1540738d_medium.png?v=1720000437)
12X30 ND | Rectangular Damper | 12X30 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X30 ND
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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_d0ce1a9f-335d-4ea0-8ac4-8eb7f86a1701_medium.png?v=1720000432)
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 12X22 ND-RSD NO Rectangular Damper | 12X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c56a8574-70f1-4a55-931a-7628a5ff0b70_medium.png?v=1720000413)
12X22 ND-RSD NO | Rectangular Damper | 12X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X22 ND-RSD NO
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![EWC Controls 22X20 ND-15S 22X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_94f77f8b-554e-4c93-b9f2-a3b04ff1c64f_medium.png?v=1720000330)
22X20 ND-15S | 22X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X20 ND-15S
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![iO HVAC Controls MD-2210-BM MD Series 22x10 (3) Wire Damper PO/PC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-MDXXXX_fcb6b7fb-24b6-4dc1-8b7a-d7be2239dd7a_medium.jpg?v=1719992419)
MD-2210-BM | MD Series 22x10 (3) Wire Damper PO / PC | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MD-2210-BM
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![iO HVAC Controls MBD-09 iO HVAC Controls Manual Balancing Damper 9 Round with locking quad | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MBD-09_medium.jpg?v=1719992331)
MBD-09 | iO HVAC Controls Manual Balancing Damper 9 Round with locking quad | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-09
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![iO HVAC Controls EB-1212 Electronic 12 x 12 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-EB-XXXX_3abe391d-7ba9-40d2-94d9-5bb8dcc830a6_medium.jpg?v=1719992237)
EB-1212 | Electronic 12 x 12 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-1212
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![EWC Controls 18X24 ND-15S 18X24 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_141e800f-7c87-40c5-a53b-5c14df478fe0_medium.png?v=1720000365)
18X24 ND-15S | 18X24 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X24 ND-15S
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