Dampers (hidden without zone panels) Rectangular Shape
Zone dampers for HVAC systems without zone control panels. Order Individual 24V motorized dampers for creating HVAC zones today at Blackhawk Supply.
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![EWC Controls 20X18 ND-RSD NO Rectangular Damper | 20X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_e2591357-18e2-4a5c-b563-e650c229a42f_medium.png?v=1713902536)
20X18 ND-RSD NO | Rectangular Damper | 20X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X18 ND-RSD NO
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![EWC Controls 20X16 ND-RSD NO Rectangular Damper | 20X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4935a947-9dea-4825-bb9a-72475bd3bebf_medium.png?v=1713902438)
20X16 ND-RSD NO | Rectangular Damper | 20X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X16 ND-RSD NO
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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_6be87ad3-83c8-4ba8-b9f0-c917a5c226d1_medium.png?v=1713902402)
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 20X6 ND-RSD NO Rectangular Damper | 20X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_83c8bc72-5977-4e39-84a1-e4589d766aad_medium.png?v=1713902427)
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 18X18 ND-RSD NO Rectangular Damper | 18X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f183fb00-bea7-4ca6-9bfe-44e5337f42e2_medium.png?v=1713902404)
18X18 ND-RSD NO | Rectangular Damper | 18X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X18 ND-RSD NO
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![EWC Controls 18X16 ND-RSD NO Rectangular Damper | 18X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_7145f36c-f9e9-41de-a25f-7914166d4abf_medium.png?v=1713902396)
18X16 ND-RSD NO | Rectangular Damper | 18X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X16 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_0912a8c6-cde5-4777-b2bd-55d6fcd8163e_medium.png?v=1713902427)
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 18X12 ND-RSD NO Rectangular Damper | 18X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4393d94a-dd0b-4386-8321-18c2370aca4d_medium.png?v=1713902422)
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 18X10 ND-RSD NO Rectangular Damper | 18X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_675fc579-edf7-42be-ba13-c425f06c1a95_medium.png?v=1713902409)
18X10 ND-RSD NO | Rectangular Damper | 18X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 18X10 ND-RSD NO
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![EWC Controls 18X8 ND-RSD NO Rectangular Damper | 18X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d02226db-39e0-47be-948b-438f1cda3d82_medium.png?v=1713902399)
18X8 ND-RSD NO | Rectangular Damper | 18X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 18X8 ND-RSD NO
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![EWC Controls 16X12 ND-RSD NO Rectangular Damper | 16X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b796fcad-d713-4c50-b6cb-70fda3ce3853_medium.png?v=1713902386)
16X12 ND-RSD NO | Rectangular Damper | 16X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X12 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_1838b711-6ff7-4c97-b65f-c5968c44e8bc_medium.png?v=1713902404)
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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![EWC Controls 12X8 ND-RSD NO Rectangular Damper | 12X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_7b14aa33-ae3c-4d15-8e82-ccda378dc0ec_medium.png?v=1713902367)
12X8 ND-RSD NO | Rectangular Damper | 12X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X8 ND-RSD NO
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![EWC Controls 10X8 ND-RSD NO Rectangular Damper | 10X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a3ff600f-b083-4ce9-b378-6c7b34bb0758_medium.png?v=1713902353)
10X8 ND-RSD NO | Rectangular Damper | 10X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X8 ND-RSD NO
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![EWC Controls 8X8 ND-RSD NO Rectangular Damper | 8X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_087cd90f-c3b4-48e7-808b-114ad9035d2e_medium.png?v=1713902494)
8X8 ND-RSD NO | Rectangular Damper | 8X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X8 ND-RSD NO
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![EWC Controls 8X6 ND-RSD NO Rectangular Damper | 8X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_95c3f613-9f08-4a8d-bfea-b244717ee524_medium.png?v=1713902495)
8X6 ND-RSD NO | Rectangular Damper | 8X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X6 ND-RSD NO
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![EWC Controls 20X24 ND Rectangular Damper | 20X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_83545e7b-ca2e-47cf-ba9f-34bcd33044d2_medium.png?v=1710946395)
20X24 ND | Rectangular Damper | 20X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X24 ND
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![EWC Controls 20X22 ND Rectangular Damper | 20X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_3eb1ac9a-20b9-4761-ab67-21390fb077c5_medium.png?v=1710946395)
20X22 ND | Rectangular Damper | 20X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X22 ND
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![EWC Controls 18X26 ND Rectangular Damper | 18X26 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_4a15ba6c-bd1c-4f27-8c86-e877bac210c6_medium.png?v=1710946388)
18X26 ND | Rectangular Damper | 18X26 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X26 ND
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![EWC Controls 16X30 ND Rectangular Damper | 16X30 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_2c412876-777d-414a-8015-c74ddd2ba5a9_medium.png?v=1710946380)
16X30 ND | Rectangular Damper | 16X30 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X30 ND
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![EWC Controls 16X28 ND Rectangular Damper | 16X28 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_52473970-a454-443c-a4fa-734a38102a97_medium.png?v=1710946394)
16X28 ND | Rectangular Damper | 16X28 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X28 ND
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![EWC Controls 16X22 ND Rectangular Damper | 16X22 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_d25e8f50-4e8b-4a6e-a25d-7dcb57498bff_medium.png?v=1710946391)
16X22 ND | Rectangular Damper | 16X22 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X22 ND
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![EWC Controls 16X18 ND Rectangular Damper | 16X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_c41c3d13-9d4b-4749-b8eb-39c6c7f7e025_medium.png?v=1710946377)
16X18 ND | Rectangular Damper | 16X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X18 ND
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![EWC Controls 14X28 ND Rectangular Damper | 14X28 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/nd_01d287ef-2a81-417e-b9d7-fe8de5fad74d_medium.png?v=1710946376)
14X28 ND | Rectangular Damper | 14X28 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X28 ND
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