Dampers (hidden without zone panels) EWC Controls
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 16X24 ND-RSD NO Rectangular Damper | 16X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_07baafdc-a6a8-435f-904e-fbc7eecb0418_medium.png?v=1713902374)
16X24 ND-RSD NO | Rectangular Damper | 16X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X24 ND-RSD NO
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![EWC Controls 16X22 ND-RSD NO Rectangular Damper | 16X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_91605148-23b4-4f86-b35d-1f80189db264_medium.png?v=1713902383)
16X22 ND-RSD NO | Rectangular Damper | 16X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X22 ND-RSD NO
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![EWC Controls 16X18 ND-RSD NO Rectangular Damper | 16X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_bcd91278-2e01-411f-bd1f-5bc60bc0fed2_medium.png?v=1713902395)
16X18 ND-RSD NO | Rectangular Damper | 16X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X18 ND-RSD NO
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![EWC Controls 14X30 ND-RSD NO Rectangular Damper | 14X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c4528314-ab5e-4477-aa6d-4adb5a94349d_medium.png?v=1713902360)
14X30 ND-RSD NO | Rectangular Damper | 14X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X30 ND-RSD NO
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![EWC Controls 14X22 ND-RSD NO Rectangular Damper | 14X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ec3cbcca-d69d-49e5-be27-bdd1cc556d0b_medium.png?v=1713902376)
14X22 ND-RSD NO | Rectangular Damper | 14X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X22 ND-RSD NO
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![EWC Controls 14X20 ND-RSD NO Rectangular Damper | 14X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_05fbb8ab-62ff-4502-8d36-881053cb6fa8_medium.png?v=1713902366)
14X20 ND-RSD NO | Rectangular Damper | 14X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X20 ND-RSD NO
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![EWC Controls 12X30 ND-RSD NO Rectangular Damper | 12X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_fc4117e0-e1ab-488a-8f04-a2110aa816a0_medium.png?v=1713902354)
12X30 ND-RSD NO | Rectangular Damper | 12X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X30 ND-RSD NO
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![EWC Controls 12X28 ND-RSD NO Rectangular Damper | 12X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_62cad052-8e0a-42fc-8e2f-dd56ab20d463_medium.png?v=1713902375)
12X28 ND-RSD NO | Rectangular Damper | 12X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X28 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_b7a1c5e4-1d22-47ca-8b38-f34bfbba3ff8_medium.png?v=1713902352)
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 12X16 ND-RSD NO Rectangular Damper | 12X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4157660e-e9f6-4edb-a257-34146a5fc7c8_medium.png?v=1713902338)
12X16 ND-RSD NO | Rectangular Damper | 12X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X16 ND-RSD NO
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![EWC Controls 10X28 ND-RSD NO Rectangular Damper | 10X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0f5cdb8b-a495-474f-9564-f031b4ff8655_medium.png?v=1713902366)
10X28 ND-RSD NO | Rectangular Damper | 10X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10X28 ND-RSD NO
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![EWC Controls 10X24 ND-RSD NO Rectangular Damper | 10X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c4cd379f-f9cd-48a7-8c58-ba6c5261cc37_medium.png?v=1713902346)
10X24 ND-RSD NO | Rectangular Damper | 10X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X24 ND-RSD NO
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![EWC Controls 10X22 ND-RSD NO Rectangular Damper | 10X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_5ae02cea-e73a-4dfc-b37a-5b785fb0a9da_medium.png?v=1713902297)
10X22 ND-RSD NO | Rectangular Damper | 10X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X22 ND-RSD NO
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![EWC Controls 10X18 ND-RSD NO Rectangular Damper | 10X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c6cf0c5a-5d7f-432b-a2c7-12f2cf9fac92_medium.png?v=1713902271)
10X18 ND-RSD NO | Rectangular Damper | 10X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X18 ND-RSD NO
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![EWC Controls 8X28 ND-RSD NO Rectangular Damper | 8X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b96d197f-b4d0-41e0-bf06-6e4ec7659dfb_medium.png?v=1713902532)
8X28 ND-RSD NO | Rectangular Damper | 8X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8X28 ND-RSD NO
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![EWC Controls 8X26 ND-RSD NO Rectangular Damper | 8X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_b5c2bac9-304e-48d0-83a7-cb7851a1ab39_medium.png?v=1713902524)
8X26 ND-RSD NO | Rectangular Damper | 8X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8X26 ND-RSD NO
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![EWC Controls 8X24 ND-RSD NO Rectangular Damper | 8X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_62815308-a5a2-4646-944c-5d364fc63101_medium.png?v=1713902478)
8X24 ND-RSD NO | Rectangular Damper | 8X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X24 ND-RSD NO
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![EWC Controls 8X22 ND-RSD NO Rectangular Damper | 8X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9c61443c-f65f-4a5f-bec5-4a5ef5c44f76_medium.png?v=1713902502)
8X22 ND-RSD NO | Rectangular Damper | 8X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X22 ND-RSD NO
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![EWC Controls 8X20 ND-RSD NO Rectangular Damper | 8X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_edd3070f-7d1f-4005-915f-55b278c4f063_medium.png?v=1713902511)
8X20 ND-RSD NO | Rectangular Damper | 8X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X20 ND-RSD NO
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![EWC Controls 8X18 ND-RSD NO Rectangular Damper | 8X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_cd613996-7be4-409f-b2bc-656a3430d0ad_medium.png?v=1713902507)
8X18 ND-RSD NO | Rectangular Damper | 8X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X18 ND-RSD NO
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![EWC Controls 8X16 ND-RSD NO Rectangular Damper | 8X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_dbdc2870-e960-42ea-b499-b8dda81645af_medium.png?v=1713902502)
8X16 ND-RSD NO | Rectangular Damper | 8X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X16 ND-RSD NO
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![EWC Controls 30X28 ND-RSD NO Rectangular Damper | 30X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2664d419-86c2-42d5-a3b6-896fd1eabf5b_medium.png?v=1713902461)
30X28 ND-RSD NO | Rectangular Damper | 30X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X28 ND-RSD NO
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![EWC Controls 30X26 ND-RSD NO Rectangular Damper | 30X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4ded136a-f307-4838-b620-660931c12f63_medium.png?v=1713902451)
30X26 ND-RSD NO | Rectangular Damper | 30X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X26 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_66b64c68-6d0f-4dbb-b13b-59a02a109e25_medium.png?v=1713902475)
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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