Rectangular dampers Rectangular dampers Type
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![EWC Controls 26X20 ND-RSD NO Rectangular Damper | 26X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4fcab3b8-1d47-4e83-9106-bdd833b2024c_medium.png?v=1720094303)
26X20 ND-RSD NO | Rectangular Damper | 26X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X20 ND-RSD NO
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![EWC Controls 30X22 ND-RSD NO Rectangular Damper | 30X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d4b9a059-df25-467a-9f16-3c8ecc268297_medium.png?v=1720094305)
30X22 ND-RSD NO | Rectangular Damper | 30X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X22 ND-RSD NO
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![EWC Controls 30X28 ND Rectangular Damper | 30X28 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_3312545e-6c03-46c9-8224-d2055144e46c_medium.png?v=1720094303)
30X28 ND | Rectangular Damper | 30X28 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X28 ND
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![EWC Controls 30X26 ND Rectangular Damper | 30X26 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_7f4e085e-f0ff-4276-9290-892f06af6385_medium.png?v=1720094303)
30X26 ND | Rectangular Damper | 30X26 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X26 ND
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![EWC Controls 24X12 ND-RSD NO Rectangular Damper | 24X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c3978017-3381-43c5-b884-3cc2fc6d938b_medium.png?v=1720000526)
24X12 ND-RSD NO | Rectangular Damper | 24X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X12 ND-RSD NO
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![EWC Controls 22X12 ND-RSD NC Rectangular Damper | 22X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f9e32a29-1358-40d7-aa10-f6c3279079e4_medium.png?v=1720000525)
22X12 ND-RSD NC | Rectangular Damper | 22X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X12 ND-RSD NC
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![EWC Controls 28X16 ND Rectangular Damper | 28X16 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f2af94b1-aed1-4e12-bb15-7111c739b799_medium.png?v=1720000521)
28X16 ND | Rectangular Damper | 28X16 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X16 ND
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![EWC Controls 28X18 ND Rectangular Damper | 28X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2b98f687-d0ff-4d6d-9e8d-0824269ad644_medium.png?v=1720000521)
28X18 ND | Rectangular Damper | 28X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X18 ND
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![EWC Controls 26X20 ND Rectangular Damper | 26X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a2eb8b9e-a7b8-4b96-93d3-d5d5e4a1b116_medium.png?v=1720000521)
26X20 ND | Rectangular Damper | 26X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X20 ND
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![EWC Controls 28X28 ND Rectangular Damper | 28X28 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_af49b3a8-205c-4be0-9ae1-6df643bf3be8_medium.png?v=1720000521)
28X28 ND | Rectangular Damper | 28X28 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X28 ND
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![EWC Controls 20X24 ND Rectangular Damper | 20X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2d61e7b8-32cf-43ef-bb58-1f0c4bec38b1_medium.png?v=1720000521)
20X24 ND | Rectangular Damper | 20X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X24 ND
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![EWC Controls 26X16 ND-RSD NO Rectangular Damper | 26X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ca5e58e3-5d2f-406d-ab5d-0ee33056f3c1_medium.png?v=1720000521)
26X16 ND-RSD NO | Rectangular Damper | 26X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X16 ND-RSD NO
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![EWC Controls 26X24 ND Rectangular Damper | 26X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_562de919-969d-4edd-8f92-5b887a8cbafd_medium.png?v=1720000517)
26X24 ND | Rectangular Damper | 26X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X24 ND
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![EWC Controls 24X20 ND Rectangular Damper | 24X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2a8cea64-552a-469f-aa55-2ca8ecdec03b_medium.png?v=1720000512)
24X20 ND | Rectangular Damper | 24X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 24X20 ND
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![EWC Controls 28X20 ND Rectangular Damper | 28X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_9e7b0efe-b16a-473c-a1f7-02a18c9eb3ef_medium.png?v=1720000512)
28X20 ND | Rectangular Damper | 28X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X20 ND
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![EWC Controls 26X14 ND-RSD NC Rectangular Damper | 26X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_91e4b975-2550-4166-8442-f3487d5873c4_medium.png?v=1720000507)
26X14 ND-RSD NC | Rectangular Damper | 26X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X14 ND-RSD NC
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![EWC Controls 28X14 ND Rectangular Damper | 28X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_0fec525d-400b-4f04-9eef-772f1d00beba_medium.png?v=1720000501)
28X14 ND | Rectangular Damper | 28X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 28X14 ND
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![EWC Controls 22X8 ND-RSD NO Rectangular Damper | 22X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_438209d2-a48b-4901-95d4-bce40ad087fe_medium.png?v=1720000501)
22X8 ND-RSD NO | Rectangular Damper | 22X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X8 ND-RSD NO
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![EWC Controls 28X16 ND-RSD NO Rectangular Damper | 28X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_42083110-4aba-410b-86d6-543b30ba92d4_medium.png?v=1720000501)
28X16 ND-RSD NO | Rectangular Damper | 28X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X16 ND-RSD NO
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![EWC Controls 22X12 ND-RSD NO Rectangular Damper | 22X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_8d0da985-48a8-4d21-9389-a2a3dd447eb5_medium.png?v=1720000501)
22X12 ND-RSD NO | Rectangular Damper | 22X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X12 ND-RSD NO
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![EWC Controls 18X12 ND-RSD NO Rectangular Damper | 18X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9d1c8415-ecc1-4465-ac32-24c67c19b0a0_medium.png?v=1720000496)
18X12 ND-RSD NO | Rectangular Damper | 18X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 18X12 ND-RSD NO
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![EWC Controls 26X22 ND Rectangular Damper | 26X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_1b5023df-2d4b-4583-89d1-edf3be28f547_medium.png?v=1720000497)
26X22 ND | Rectangular Damper | 26X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X22 ND
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![EWC Controls 26X10 ND Rectangular Damper | 26X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_025ad66d-54c7-4b5b-b2c7-2e5004d5eae5_medium.png?v=1720000496)
26X10 ND | Rectangular Damper | 26X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X10 ND
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![EWC Controls 26X14 ND Rectangular Damper | 26X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_4a336a16-0b8b-4f24-b523-cb35d495edf2_medium.png?v=1720000488)
26X14 ND | Rectangular Damper | 26X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 26X14 ND
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