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 14X16 ND-RSD NO Rectangular Damper | 14X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f71050e3-1a8e-4320-bb45-a999dffa4daf_medium.png?v=1713902418)
14X16 ND-RSD NO | Rectangular Damper | 14X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 14X16 ND-RSD NO
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![EWC Controls 12X22 ND-RSD NO Rectangular Damper | 12X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_275f77fc-5cd0-4305-a509-9da670fa9293_medium.png?v=1713902346)
12X22 ND-RSD NO | Rectangular Damper | 12X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X22 ND-RSD NO
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![EWC Controls 12X18 ND-RSD NO Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f62da3d7-f673-465b-aa62-eb6a079fe575_medium.png?v=1713902338)
12X18 ND-RSD NO | Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 12X18 ND-RSD NO
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![EWC Controls 10X30 ND-RSD NO Rectangular Damper | 10X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_603545ef-592b-4eb3-b640-021cc1f8d7c3_medium.png?v=1713902317)
10X30 ND-RSD NO | Rectangular Damper | 10X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10X30 ND-RSD NO
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![EWC Controls 10X26 ND-RSD NO Rectangular Damper | 10X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_da3ab040-3a1d-4a2b-a2e1-8a09b6eaeb80_medium.png?v=1713902337)
10X26 ND-RSD NO | Rectangular Damper | 10X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10X26 ND-RSD NO
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![EWC Controls 10X20 ND-RSD NO Rectangular Damper | 10X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_12d2168c-ffc7-43a5-8c52-b5fb18a79192_medium.png?v=1713902311)
10X20 ND-RSD NO | Rectangular Damper | 10X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X20 ND-RSD NO
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![EWC Controls 10x16 ND-RSD NO Rectangular Damper | 10X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d7f68323-63b7-4645-8c31-210e1d82c2a4_medium.png?v=1713902331)
10x16 ND-RSD NO | Rectangular Damper | 10X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10x16 ND-RSD NO
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![EWC Controls 10X14 ND-RSD NO Rectangular Damper | 10X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ce329e09-89d0-41aa-a5f6-eff034f34a66_medium.png?v=1713902332)
10X14 ND-RSD NO | Rectangular Damper | 10X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 10X14 ND-RSD NO
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![EWC Controls 8X30 ND-RSD NO Rectangular Damper | 8X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ac8441a2-4399-48cb-8a31-e500a0a54194_medium.png?v=1713902480)
8X30 ND-RSD NO | Rectangular Damper | 8X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8X30 ND-RSD NO
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![EWC Controls 8X12 ND-RSD NO Rectangular Damper | 8X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_65d985ae-650b-4064-b75f-e65be6c3f246_medium.png?v=1713902510)
8X12 ND-RSD NO | Rectangular Damper | 8X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X12 ND-RSD NO
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![EWC Controls 8X10 ND-RSD NO Rectangular Damper | 8X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_3424f44c-24bd-4e83-94b8-5a2afab3ae0e_medium.png?v=1713902462)
8X10 ND-RSD NO | Rectangular Damper | 8X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 8X10 ND-RSD NO
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![EWC Controls 28X20 ND-RSD NO Rectangular Damper | 28X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_725e0f11-3da7-42c5-b9c9-6ea68f326c60_medium.png?v=1713902451)
28X20 ND-RSD NO | Rectangular Damper | 28X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X20 ND-RSD NO
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![EWC Controls 26X8 ND-RSD NO Rectangular Damper | 26X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a35c7b7b-6adb-4da0-949e-168e4132bb0c_medium.png?v=1713902442)
26X8 ND-RSD NO | Rectangular Damper | 26X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X8 ND-RSD NO
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![EWC Controls 24X22 ND-RSD NO Rectangular Damper | 24X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_587c8d36-6abf-4c4e-8a71-9d3c8294b806_medium.png?v=1713902432)
24X22 ND-RSD NO | Rectangular Damper | 24X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X22 ND-RSD NO
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![EWC Controls 24X16 ND-RSD NO Rectangular Damper | 24X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6f2cd73d-ddbb-4fc1-b237-4dbfed912b0f_medium.png?v=1713902494)
24X16 ND-RSD NO | Rectangular Damper | 24X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X16 ND-RSD NO
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![EWC Controls 24X14 ND-RSD NO Rectangular Damper | 24X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f3e7f0ef-4cd5-4b45-99cf-c08aec01d712_medium.png?v=1713902451)
24X14 ND-RSD NO | Rectangular Damper | 24X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X14 ND-RSD NO
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![EWC Controls 22X20 ND-RSD NO Rectangular Damper | 22X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_bd858eb5-41de-4ad6-8281-29d4dc95c8a8_medium.png?v=1713902443)
22X20 ND-RSD NO | Rectangular Damper | 22X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X20 ND-RSD NO
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![EWC Controls 22X14 ND-RSD NO Rectangular Damper | 22X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_615d4ec6-966c-4217-9749-e30757b8bf0d_medium.png?v=1713902431)
22X14 ND-RSD NO | Rectangular Damper | 22X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X14 ND-RSD NO
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![EWC Controls 20X20 ND-RSD NO Rectangular Damper | 20X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a8526fbe-1733-49c8-902b-483517a4cdb3_medium.png?v=1713902432)
20X20 ND-RSD NO | Rectangular Damper | 20X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X20 ND-RSD NO
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![EWC Controls 20X12 ND-RSD NO Rectangular Damper | 20X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6cae7241-2850-42bd-959c-2beebc24c396_medium.png?v=1713902419)
20X12 ND-RSD NO | Rectangular Damper | 20X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X12 ND-RSD NO
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![EWC Controls 20X8 ND-RSD NO Rectangular Damper | 20X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_95d2c3a0-f94e-4451-bb97-2f7ebbfac3f8_medium.png?v=1713902406)
20X8 ND-RSD NO | Rectangular Damper | 20X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 20X8 ND-RSD NO
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![EWC Controls 18X6 ND-RSD NO Rectangular Damper | 18X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_595d980c-181a-47e2-ab91-b8b9cdc10d5c_medium.png?v=1713902406)
18X6 ND-RSD NO | Rectangular Damper | 18X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 18X6 ND-RSD NO
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![EWC Controls 16X16 ND-RSD NO Rectangular Damper | 16X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4b537f23-5fd9-4270-8340-6a0d142338b1_medium.png?v=1713902380)
16X16 ND-RSD NO | Rectangular Damper | 16X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X16 ND-RSD NO
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![EWC Controls 16X10 ND-RSD NO Rectangular Damper | 16X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_07a073a2-d8b6-4971-8191-1f65fbc0e133_medium.png?v=1713902437)
16X10 ND-RSD NO | Rectangular Damper | 16X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls
Brand: EWC Controls
SKU: 16X10 ND-RSD NO
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