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 24X22 ND-15S 24X22 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_356c44fb-aa73-4248-97b0-231821557b00_medium.png?v=1713902281)
24X22 ND-15S | 24X22 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 24X22 ND-15S
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![EWC Controls 24X8 ND-15S 24X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_e414d029-3eac-4f17-aab8-2bcb2022af06_medium.png?v=1713902243)
24X8 ND-15S | 24X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 24X8 ND-15S
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![EWC Controls 22X20 ND-15S 22X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_42363dcf-4662-42ab-a8fa-e19b36296c50_medium.png?v=1713902264)
22X20 ND-15S | 22X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 22X20 ND-15S
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![EWC Controls 18X10 ND-15S 18X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2ff6ebdc-6f22-455e-bca5-82d545871872_medium.png?v=1713902234)
18X10 ND-15S | 18X10 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 18X10 ND-15S
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![EWC Controls 12X8 ND-15S 12X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_42adfab4-f7d5-4179-8d7f-34212359c1bc_medium.png?v=1713902234)
12X8 ND-15S | 12X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 12X8 ND-15S
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![EWC Controls 10X20 ND-15S 10X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_c24dad05-bd39-4756-863d-d0a41409a829_medium.png?v=1713902244)
10X20 ND-15S | 10X20 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10X20 ND-15S
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![EWC Controls 8X12 ND-15S 8X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f3e61a4a-1759-4dcf-8efd-1d3429bf80ff_medium.png?v=1713902304)
8X12 ND-15S | 8X12 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 8X12 ND-15S
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![EWC Controls 10x6 ND-15S 10X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_44ffd854-500e-4272-beb1-0e28bed1af2d_medium.png?v=1713902390)
10x6 ND-15S | 10X6 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10x6 ND-15S
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![EWC Controls 10 PRD-RD 10 Inch Round Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/bypass1_8f262048-9e8f-4e7c-942e-239d2e2c32a2_medium.jpg?v=1713902350)
10 PRD-RD | 10 Inch Round Manual Bypass Damper | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10 PRD-RD
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![EWC Controls 4 SID 4 Inch Slip In Retrofit Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sid1_5ee89470-427f-4c28-bae0-c567eabe4fe9_medium.gif?v=1713902470)
4 SID | 4 Inch Slip In Retrofit Damper | EWC Controls
Brand: EWC Controls
SKU: 4 SID
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![EWC Controls 5 URD-SRE120 N.O. 5 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_5a09e1ec-2315-4a95-bade-eb4b550e74fc_medium.gif?v=1713902502)
5 URD-SRE120 N.O. | 5 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 5 URD-SRE120 N.O.
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![EWC Controls 5 RSD 5 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_746677d6-fba9-4843-8bb1-5cd88d6cedfc_medium.png?v=1713902498)
5 RSD | 5 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 5 RSD
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![EWC Controls 7 URD 7 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_afdcfab8-7644-46a1-9080-5956e79b5a20_medium.gif?v=1713902541)
7 URD | 7 Inch Round Motorized Damper | EWC Controls
Brand: EWC Controls
SKU: 7 URD
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![EWC Controls 20X12 PRD 20X12 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_fe598e9e-0eb0-4979-98f1-c9338eec3e72_medium.gif?v=1713902418)
20X12 PRD | 20X12 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X12 PRD
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![EWC Controls 12X10 PRD 12X10 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_5126c12d-f047-4513-af39-661cd7109ed4_medium.gif?v=1713902333)
12X10 PRD | 12X10 Rectangular Manual Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X10 PRD
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![EWC Controls 20X24 ND-RSD NC Rectangular Damper | 20X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_84ee8f44-33de-400c-9299-ff442eeb9fb2_medium.png?v=1713902401)
20X24 ND-RSD NC | Rectangular Damper | 20X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X24 ND-RSD NC
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![EWC Controls 18X20 ND-RSD NC Rectangular Damper | 18X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_dedcea40-f6ed-463d-baea-b75e43a15109_medium.png?v=1713902409)
18X20 ND-RSD NC | Rectangular Damper | 18X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X20 ND-RSD NC
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![EWC Controls 16X28 ND-RSD NC Rectangular Damper | 16X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9f155e90-1f2f-4db5-b991-6ddd517db0b8_medium.png?v=1713902374)
16X28 ND-RSD NC | Rectangular Damper | 16X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X28 ND-RSD NC
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![EWC Controls 16X22 ND-RSD NC Rectangular Damper | 16X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6a590c6a-0125-4228-b6db-a77a28a967fe_medium.png?v=1713902374)
16X22 ND-RSD NC | Rectangular Damper | 16X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X22 ND-RSD NC
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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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