ewc
We offer over 70 EWC HVAC products, including Bypass Dampers, Damper Controls & Accessories, Rectangular Dampers, Round Dampers, and Zoning Panels.
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![EWC Controls 10X8 ND-15S 10X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN/POWER CLOSE | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_10c2e013-861d-4ea6-a600-07dd17bd2873_medium.png?v=1720000326)
10X8 ND-15S | 10X8 ND-15S MOTORIZED DAMPER 15 SECOND POWER OPEN / POWER CLOSE | EWC Controls
Brand: EWC Controls
SKU: 10X8 ND-15S
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![EWC Controls 12X8 SBD 12X8 SBD SMART BYPASS DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sbd_nd_1593777b-0406-4ef9-99bc-1336db8244a6_medium.png?v=1720094289)
12X8 SBD | 12X8 SBD SMART BYPASS DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X8 SBD
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![EWC Controls 8 SBD 8 SBD SMART BYPASS DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sbd_6f5347b2-b01d-4653-8180-e2489dd861b6_medium.png?v=1713902471)
8 SBD | 8 SBD SMART BYPASS DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8 SBD
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![EWC Controls 8 URD-SRE24 VOLT N.C. 8 URD-SRE24 24V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_a762c71d-c3e6-4044-9d81-4748c55609ca_medium.gif?v=1720000557)
8 URD-SRE24 VOLT N.C. | 8 URD-SRE24 24V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8 URD-SRE24 VOLT N.C.
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![EWC Controls 10 SID 10 Inch Slip In Retrofit Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sid1_6933244f-d8ff-461c-978c-0df37c90b5e2_medium.gif?v=1720000388)
10 SID | 10 Inch Slip In Retrofit Damper | EWC Controls
Brand: EWC Controls
SKU: 10 SID
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![EWC Controls 8 SID 8 Inch Slip In Retrofit Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sid1_f68f5b30-4845-44c0-bf6b-abad379f6ea1_medium.gif?v=1719987519)
8 SID | 8 Inch Slip In Retrofit Damper | EWC Controls
Brand: EWC Controls
SKU: 8 SID
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![EWC Controls 6 SID 6 Inch Slip In Retrofit Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sid1_87b77a39-7cc4-4144-ba5a-9a4bf38cfc46_medium.gif?v=1720000526)
6 SID | 6 Inch Slip In Retrofit Damper | EWC Controls
Brand: EWC Controls
SKU: 6 SID
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![EWC Controls 16 RSD 16 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_157bdbe9-92dd-4d15-8f4b-3e162523101b_medium.png?v=1720000433)
16 RSD | 16 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 16 RSD
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![EWC Controls 12 RSD 12 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_medium.png?v=1720000423)
12 RSD | 12 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 12 RSD
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![EWC Controls 10 RSD 10 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_cd2af79a-a40a-4bf4-9f28-4454ba9502e3_medium.png?v=1720000371)
10 RSD | 10 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 10 RSD
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![EWC Controls 9 RSD 9 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_0f855810-83c1-4741-9b56-bc6a2a781917_medium.png?v=1720000546)
9 RSD | 9 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 9 RSD
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![EWC Controls 6 RSD 6 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_72ddde36-42d7-4ffa-89c2-540ae9f49fd0_medium.png?v=1719987612)
6 RSD | 6 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 6 RSD
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![EWC Controls 4 RSD 4 Inch Round Motorized Spring Return Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/rsd_b6e0ec1f-ccd0-47a3-84e1-318005deb338_medium.png?v=1720094311)
4 RSD | 4 Inch Round Motorized Spring Return Damper | EWC Controls
Brand: EWC Controls
SKU: 4 RSD
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![EWC Controls DBA-18 DBA-18 18In Duct Board Adapt 2Pk | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/dba_06e33d39-cafc-4a62-ba8d-8f8a21a2222e_medium.gif?v=1713902507)
DBA-18 | DBA-18 18In Duct Board Adapt 2Pk | EWC Controls
Brand: EWC Controls
SKU: DBA-18
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![EWC Controls DBA-12 DBA-12 12In Duct Board Adapt 2Pk | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/dba_c53b7db8-7b6a-4131-9e18-6696fce68115_medium.gif?v=1713902520)
DBA-12 | DBA-12 12In Duct Board Adapt 2Pk | EWC Controls
Brand: EWC Controls
SKU: DBA-12
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![EWC Controls T-40VA-PT T-40Va Transformer 24V 40Va Plate Mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/t40vapt_0a658099-90f5-46f7-a286-2d952eaddf92_medium.png?v=1719987520)
T-40VA-PT | T-40Va Transformer 24V 40Va Plate Mount | EWC Controls
Brand: EWC Controls
SKU: T-40VA-PT
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![EWC Controls T-40VA-F T-40Va Transformer 24V 40Va Foot Mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/t40va_165f7be5-6550-4e16-b284-e6b7df44dc06_medium.png?v=1719987489)
T-40VA-F | T-40Va Transformer 24V 40Va Foot Mount | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: T-40VA-F
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![EWC Controls VAC VAC Vacation Mode Switch Spdt | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ewc-controls-rac-rac-remote-a-c-damper-control-spdt_d97e0e0b-d5f1-4ec8-9baa-e25f3bbde9cd_medium.gif?v=1719987745)
VAC | VAC Vacation Mode Switch Spdt | EWC Controls
Brand: EWC Controls
SKU: VAC
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![EWC Controls BMPLUS-7000 BMPLUS-7000 2Stght/2Stgclg Cntl Pn | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/bmplus_c3879a20-48ef-4352-a08a-276792e29347_medium.png?v=1720000566)
BMPLUS-7000 | BMPLUS-7000 2Stght / 2Stgclg Cntl Pn | EWC Controls
Brand: EWC Controls
SKU: BMPLUS-7000
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![EWC Controls UZC-10 UZC-10 Zone/Cntrl Pnl 2Stclg/3Stg Ht | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/uzc4_c86f54f7-5337-4794-a736-edaf9b3955e0_medium.png?v=1719987495)
UZC-10 | UZC-10 Zone / Cntrl Pnl 2Stclg / 3Stg Ht | EWC Controls
Brand: EWC Controls
SKU: UZC-10
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![EWC Controls PS-4 PS-4 PRESSURE SWITCH | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/wpe5_f8936eaf-75f0-4569-9a76-17da0e0bb34a_medium.jpg?v=1713902541)
PS-4 | PS-4 PRESSURE SWITCH | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: PS-4
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![EWC Controls 16 EBD 16 Inch Round Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd-round_69ee15f2-103a-427d-9128-834f54e33915_medium.gif?v=1720000441)
16 EBD | 16 Inch Round Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 16 EBD
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![EWC Controls 14 EBD 14 Inch Round Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd-round_b382133d-873b-4135-a8e9-8d6dbc58cb40_medium.gif?v=1720000433)
14 EBD | 14 Inch Round Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 14 EBD
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![EWC Controls 8 EBD 8 Inch Round Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd-round_aba85e5b-4961-422e-be3c-7288b272c643_medium.gif?v=1720000551)
8 EBD | 8 Inch Round Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 8 EBD
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AF120 US | Damper Actuator | 180 in-lb | Spg Rtn | 24 to 240V (UP) | On/Off | Belimo (OBSOLETE)
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