Dampers Rectangular Shape
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![EWC Controls 22X20 ND Rectangular Damper | 22X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_581ca76f-4c43-4aec-af03-4bce7f5f9eb8_medium.png?v=1720000488)
22X20 ND | Rectangular Damper | 22X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 22X20 ND
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![EWC Controls 20X10 EBD 20X10 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_aaf30ef3-d958-4f5d-87b0-7f118a08343f_medium.gif?v=1720000487)
20X10 EBD | 20X10 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X10 EBD
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![EWC Controls 24X24 ND-RSD NO Rectangular Damper | 24X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_65fd21b7-cd3b-4bfc-8d3b-190810882f74_medium.png?v=1720000487)
24X24 ND-RSD NO | Rectangular Damper | 24X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X24 ND-RSD NO
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![EWC Controls 24X6 ND-RSD NO Rectangular Damper | 24X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9987db18-2faa-4d75-83ba-d03ca6a74121_medium.png?v=1720000487)
24X6 ND-RSD NO | Rectangular Damper | 24X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X6 ND-RSD NO
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![EWC Controls 24X20 ND-RSD NO Rectangular Damper | 24X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6b753f67-6c00-4c95-8cfd-234bda78c451_medium.png?v=1720000483)
24X20 ND-RSD NO | Rectangular Damper | 24X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X20 ND-RSD NO
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![EWC Controls 28X26 ND Rectangular Damper | 28X26 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_194a97f7-5f7a-4573-b28b-8735afaf361d_medium.png?v=1720000483)
28X26 ND | Rectangular Damper | 28X26 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X26 ND
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![EWC Controls 26X14 ND-RSD NO Rectangular Damper | 26X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c455ba83-9472-4a65-b74b-6d9300df808f_medium.png?v=1720000482)
26X14 ND-RSD NO | Rectangular Damper | 26X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X14 ND-RSD NO
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![EWC Controls 24X22 ND Rectangular Damper | 24X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_cde12b42-bf71-4ea1-b797-a1fe844c5cd1_medium.png?v=1720000482)
24X22 ND | Rectangular Damper | 24X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X22 ND
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![EWC Controls 28X14 ND-RSD NC Rectangular Damper | 28X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_1422b12b-336a-4c5f-9117-172e3431a6f2_medium.png?v=1720000482)
28X14 ND-RSD NC | Rectangular Damper | 28X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X14 ND-RSD NC
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![EWC Controls 22X6 ND-RSD NO Rectangular Damper | 22X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9d6ddc8e-85ac-47de-9b78-174d8b5e8e6c_medium.png?v=1720000482)
22X6 ND-RSD NO | Rectangular Damper | 22X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X6 ND-RSD NO
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![EWC Controls 18X10 ND-RSD NC Rectangular Damper | 18X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_25ecdc06-fc55-4f87-806a-0ec8d16cd0f6_medium.png?v=1720000481)
18X10 ND-RSD NC | Rectangular Damper | 18X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 18X10 ND-RSD NC
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![EWC Controls 20X18 ND-RSD NC Rectangular Damper | 20X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c70bc79f-3b8d-4990-bf43-9935d48a20c4_medium.png?v=1720000482)
20X18 ND-RSD NC | Rectangular Damper | 20X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X18 ND-RSD NC
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![EWC Controls 26X12 ND-RSD NO Rectangular Damper | 26X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_01364629-c054-4274-9b9c-a165332e492a_medium.png?v=1720000477)
26X12 ND-RSD NO | Rectangular Damper | 26X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X12 ND-RSD NO
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![EWC Controls 18X14 ND-RSD NO Rectangular Damper | 18X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_cc111724-d840-46ce-b184-1a92b8a21e50_medium.png?v=1720000477)
18X14 ND-RSD NO | Rectangular Damper | 18X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 18X14 ND-RSD NO
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![EWC Controls 20X6 ND-RSD NC Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_633d9220-743a-4162-a0c1-a9c136640ff5_medium.png?v=1720000477)
20X6 ND-RSD NC | Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 20X6 ND-RSD NC
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![EWC Controls 20X6 ND-RSD NO Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c00c69ce-321b-4dde-9604-e49a81cf47b3_medium.png?v=1720000477)
20X6 ND-RSD NO | Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X6 ND-RSD NO
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![EWC Controls 20X8 EBD 20X8 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_b9e48722-c675-4f7d-b645-53c17ba34a73_medium.gif?v=1720000473)
20X8 EBD | 20X8 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X8 EBD
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![EWC Controls 22X10 ND-RSD NO Rectangular Damper | 22X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_55c814a9-001c-4b6c-892f-83ccea5ebbfa_medium.png?v=1720000473)
22X10 ND-RSD NO | Rectangular Damper | 22X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X10 ND-RSD NO
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![EWC Controls 16X14 ND-RSD NC Rectangular Damper | 16X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2785b0fd-3811-4035-8ada-9de8c8933d7a_medium.png?v=1720000477)
16X14 ND-RSD NC | Rectangular Damper | 16X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 16X14 ND-RSD NC
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![EWC Controls 16X26 ND-RSD NO Rectangular Damper | 16X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_dedce76d-4cc6-4565-b156-cd63616a12af_medium.png?v=1720000472)
16X26 ND-RSD NO | Rectangular Damper | 16X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X26 ND-RSD NO
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![EWC Controls 12X26 ND-RSD NO Rectangular Damper | 12X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_15448972-98e6-4bd9-a3a1-6233633f2f06_medium.png?v=1720000472)
12X26 ND-RSD NO | Rectangular Damper | 12X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X26 ND-RSD NO
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![EWC Controls 22X18 ND-RSD NC Rectangular Damper | 22X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f39aefef-b535-4e4a-9aae-1fcec07a7436_medium.png?v=1720000469)
22X18 ND-RSD NC | Rectangular Damper | 22X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X18 ND-RSD NC
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![EWC Controls 20X10 ND-RSD NO Rectangular Damper | 20X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_5290a375-a4e9-4039-996f-5f0cafe242c8_medium.png?v=1720000468)
20X10 ND-RSD NO | Rectangular Damper | 20X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X10 ND-RSD NO
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![EWC Controls 16X6 ND-RSD NO Rectangular Damper | 16X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_3d39101a-0b64-4041-ae21-608c0dca4b40_medium.png?v=1720000469)
16X6 ND-RSD NO | Rectangular Damper | 16X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X6 ND-RSD NO
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