Dampers (hidden without zone panels) Yes Motorized
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 14X30 ND-RSD NC Rectangular Damper | 14X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4f14f047-a373-4136-8e8b-919ecee41ae5_medium.png?v=1713902410)
14X30 ND-RSD NC | Rectangular Damper | 14X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X30 ND-RSD NC
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![EWC Controls 14X18 ND-RSD NC Rectangular Damper | 14X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_69f9d7a0-190a-4303-9544-956df8a1d9e0_medium.png?v=1713902395)
14X18 ND-RSD NC | Rectangular Damper | 14X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X18 ND-RSD NC
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![EWC Controls 12X28 ND-RSD NC Rectangular Damper | 12X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_eb486c98-fb23-4f31-9295-cfc5e5373357_medium.png?v=1713902328)
12X28 ND-RSD NC | Rectangular Damper | 12X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X28 ND-RSD NC
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![EWC Controls 12X20 ND-RSD NC Rectangular Damper | 12X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c99213ac-c8a6-4def-b586-81fd07f1915e_medium.png?v=1713902360)
12X20 ND-RSD NC | Rectangular Damper | 12X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X20 ND-RSD NC
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![EWC Controls 10X30 ND-RSD NC Rectangular Damper | 10X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f5ee3974-b873-40ad-b5f9-83dd6bc37d7f_medium.png?v=1713902338)
10X30 ND-RSD NC | Rectangular Damper | 10X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10X30 ND-RSD NC
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![EWC Controls 10X24 ND-RSD NC Rectangular Damper | 10X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_50307fef-3b61-49c5-915d-448b78d37a09_medium.png?v=1713902331)
10X24 ND-RSD NC | Rectangular Damper | 10X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X24 ND-RSD NC
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![EWC Controls 10X20 ND-RSD NC Rectangular Damper | 10X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0eb209f9-e8d8-4189-ba63-4109b90ec66c_medium.png?v=1713902305)
10X20 ND-RSD NC | Rectangular Damper | 10X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X20 ND-RSD NC
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![EWC Controls 10X18 ND-RSD NC Rectangular Damper | 10X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c34c03cb-62c3-4cce-9280-5aa099ee775b_medium.png?v=1713902305)
10X18 ND-RSD NC | Rectangular Damper | 10X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X18 ND-RSD NC
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![EWC Controls 10x16 ND-RSD NC Rectangular Damper | 10X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a9107397-cfb0-473f-af09-b026e67da963_medium.png?v=1713902320)
10x16 ND-RSD NC | Rectangular Damper | 10X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10x16 ND-RSD NC
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![EWC Controls 10X14 ND-RSD NC Rectangular Damper | 10X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d5e1f286-5cc1-4588-b0d8-ca56d7c070dc_medium.png?v=1713902311)
10X14 ND-RSD NC | Rectangular Damper | 10X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X14 ND-RSD NC
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![EWC Controls 8X26 ND-RSD NC Rectangular Damper | 8X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ae2308ad-8d23-4046-883e-09cf888e3d8d_medium.png?v=1713902536)
8X26 ND-RSD NC | Rectangular Damper | 8X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8X26 ND-RSD NC
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![EWC Controls 8X14 ND-RSD NC Rectangular Damper | 8X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_aa59e184-045f-48a1-b764-acc01b227f16_medium.png?v=1713902490)
8X14 ND-RSD NC | Rectangular Damper | 8X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8X14 ND-RSD NC
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![EWC Controls 30X12 ND-RSD NC Rectangular Damper | 30X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_eaf99e5a-7034-4c71-af43-d5fe5ffa9f55_medium.png?v=1713902469)
30X12 ND-RSD NC | Rectangular Damper | 30X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X12 ND-RSD NC
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![EWC Controls 28X12 ND-RSD NC Rectangular Damper | 28X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a1d4959c-22fe-4dac-815c-47ecd7bf64a7_medium.png?v=1713902476)
28X12 ND-RSD NC | Rectangular Damper | 28X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X12 ND-RSD NC
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![EWC Controls 24X18 ND-RSD NC Rectangular Damper | 24X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0f057345-af98-44f7-b4bb-5844ab96d387_medium.png?v=1713902455)
24X18 ND-RSD NC | Rectangular Damper | 24X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X18 ND-RSD NC
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![EWC Controls 24X16 ND-RSD NC Rectangular Damper | 24X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b825ed9a-c579-4073-ac1f-89785365360c_medium.png?v=1713902455)
24X16 ND-RSD NC | Rectangular Damper | 24X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X16 ND-RSD NC
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![EWC Controls 24X14 ND-RSD NC Rectangular Damper | 24X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_71e216e7-ce1e-43dd-bd58-dcd374c036cd_medium.png?v=1713902446)
24X14 ND-RSD NC | Rectangular Damper | 24X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X14 ND-RSD NC
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![EWC Controls 24X10 ND-RSD NC Rectangular Damper | 24X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_32270874-df8c-4b84-b6a2-c13aa599ede9_medium.png?v=1713902436)
24X10 ND-RSD NC | Rectangular Damper | 24X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X10 ND-RSD NC
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![EWC Controls 24X8 ND-RSD NC Rectangular Damper | 24X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED] | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2f8d539b-640a-4edd-a0e8-e4ca404270e5_medium.png?v=1713902419)
24X8 ND-RSD NC | Rectangular Damper | 24X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED] | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X8 ND-RSD NC
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![EWC Controls 22X22 ND-RSD NC Rectangular Damper | 22X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d6f49b43-7b47-49f0-9982-007296aa8211_medium.png?v=1713902428)
22X22 ND-RSD NC | Rectangular Damper | 22X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X22 ND-RSD NC
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![EWC Controls 20X10 ND-RSD NC Rectangular Damper | 20X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b1af0c12-d46a-4753-8f5d-2841c2774635_medium.png?v=1713902475)
20X10 ND-RSD NC | Rectangular Damper | 20X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 20X10 ND-RSD NC
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![EWC Controls 18X16 ND-RSD NC Rectangular Damper | 18X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_726f76ac-3126-4ad1-91b7-38c7b2b2a2a2_medium.png?v=1713902418)
18X16 ND-RSD NC | Rectangular Damper | 18X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X16 ND-RSD NC
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![EWC Controls 16X10 ND-RSD NC Rectangular Damper | 16X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_926e48c9-c181-4d87-8101-64a2b1058df6_medium.png?v=1713902376)
16X10 ND-RSD NC | Rectangular Damper | 16X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 16X10 ND-RSD NC
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![EWC Controls 14X12 ND-RSD NC Rectangular Damper | 14X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_619b65a0-3cef-4c02-8212-9452cb75b454_medium.png?v=1713902355)
14X12 ND-RSD NC | Rectangular Damper | 14X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X12 ND-RSD NC
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