Ewc Spring return (nc) Spring return
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 8 URD-SRE120 NC 8 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/urd-sr120small-proof_20643c28-7140-4785-9182-3d2539fbf706_medium.gif?v=1709054581)
8 URD-SRE120 NC | 8 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8 URD-SRE120 NC
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![EWC Controls 6 URD-SRE120 NC 6 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/urd-sr120small-proof_ba44d395-fac3-4d67-b76e-5a380635979d_medium.gif?v=1709054572)
6 URD-SRE120 NC | 6 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 6 URD-SRE120 NC
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![EWC Controls 5 URD-SRE120 NC 5 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/urd-sr120small-proof_b11330e5-0200-4def-ac26-acb118e7ca30_medium.gif?v=1709054582)
5 URD-SRE120 NC | 5 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 5 URD-SRE120 NC
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![EWC Controls 10 URD-SRE120 NC 10 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/urd-sr120small-proof_3fa9c863-e2a4-4748-a04b-ff8f67e516b8_medium.gif?v=1709054600)
10 URD-SRE120 NC | 10 URD-SRE120 120V ROUND SPRING RETURN DAMPER – NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10 URD-SRE120 NC
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![EWC Controls 9 URD-SRE120 N.C. 9 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_389564bf-17f7-4de1-a505-df43cf46a529_medium.gif?v=1713902515)
9 URD-SRE120 N.C. | 9 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 9 URD-SRE120 N.C.
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![EWC Controls 7 URD-SRE120 N.C. 7 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_076914a0-0603-4789-ad3e-bb5c79da3ee8_medium.gif?v=1713902527)
7 URD-SRE120 N.C. | 7 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 7 URD-SRE120 N.C.
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![EWC Controls 5 URD-SRE120 N.C. 5 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_b59bf5c6-392a-49d0-8402-2d92eabe628c_medium.gif?v=1713902490)
5 URD-SRE120 N.C. | 5 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 5 URD-SRE120 N.C.
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![EWC Controls 4 URD-SRE120 N.C. 4 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_d13e9463-bd37-43ac-8970-60221ea9cf75_medium.gif?v=1713902452)
4 URD-SRE120 N.C. | 4 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 4 URD-SRE120 N.C.
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![EWC Controls 20X22 ND-RSD NC Rectangular Damper | 20X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_73fd0a0f-b0b7-4042-8bb5-a883569e77d0_medium.png?v=1713902432)
20X22 ND-RSD NC | Rectangular Damper | 20X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X22 ND-RSD NC
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![EWC Controls 18X26 ND-RSD NC Rectangular Damper | 18X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a2ef9221-0ba2-4672-9536-2a97c6d5b7d8_medium.png?v=1713902406)
18X26 ND-RSD NC | Rectangular Damper | 18X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X26 ND-RSD NC
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![EWC Controls 18X22 ND-RSD NC Rectangular Damper | 18X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2a5581b3-fd4d-4702-b975-1160ade77ca3_medium.png?v=1713902423)
18X22 ND-RSD NC | Rectangular Damper | 18X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X22 ND-RSD NC
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![EWC Controls 16X30 ND-RSD NC Rectangular Damper | 16X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_17483d73-fd9c-4a8a-92ff-59c5e2ac4dff_medium.png?v=1713902412)
16X30 ND-RSD NC | Rectangular Damper | 16X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X30 ND-RSD NC
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![EWC Controls 16X26 ND-RSD NC Rectangular Damper | 16X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_93986b3d-11f8-4c89-b029-c3f887d4ab1a_medium.png?v=1713902385)
16X26 ND-RSD NC | Rectangular Damper | 16X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X26 ND-RSD NC
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![EWC Controls 16X24 ND-RSD NC Rectangular Damper | 16X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_63707c4c-2528-4178-98b5-67edcfe86fde_medium.png?v=1713902375)
16X24 ND-RSD NC | Rectangular Damper | 16X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X24 ND-RSD NC
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![EWC Controls 16X18 ND-RSD NC Rectangular Damper | 16X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_1d1d63cc-35c7-43f7-b5d8-da2ead777cb7_medium.png?v=1713902390)
16X18 ND-RSD NC | Rectangular Damper | 16X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X18 ND-RSD NC
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![EWC Controls 14X28 ND-RSD NC Rectangular Damper | 14X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9e28da5c-9dee-426f-8d46-2030923faabf_medium.png?v=1713902377)
14X28 ND-RSD NC | Rectangular Damper | 14X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X28 ND-RSD NC
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![EWC Controls 14X26 ND-RSD NC Rectangular Damper | 14X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0a580b31-89d1-4260-9a60-f4cc9a30de34_medium.png?v=1713902357)
14X26 ND-RSD NC | Rectangular Damper | 14X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X26 ND-RSD NC
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![EWC Controls 14X24 ND-RSD NC Rectangular Damper | 14X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_43ce4134-776a-4977-a3f4-764215a3f200_medium.png?v=1713902367)
14X24 ND-RSD NC | Rectangular Damper | 14X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X24 ND-RSD NC
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![EWC Controls 14X22 ND-RSD NC Rectangular Damper | 14X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_7e865784-0db7-46dc-94ba-b94f31835cce_medium.png?v=1713902386)
14X22 ND-RSD NC | Rectangular Damper | 14X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X22 ND-RSD NC
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![EWC Controls 12X30 ND-RSD NC Rectangular Damper | 12X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_832ddb21-a6f4-4af7-bb2e-c3a1979e15ac_medium.png?v=1713902366)
12X30 ND-RSD NC | Rectangular Damper | 12X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X30 ND-RSD NC
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![EWC Controls 12X26 ND-RSD NC Rectangular Damper | 12X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_990b9df2-c123-42e1-803b-74b65a95f01c_medium.png?v=1713902354)
12X26 ND-RSD NC | Rectangular Damper | 12X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X26 ND-RSD NC
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![EWC Controls 12X22 ND-RSD NC Rectangular Damper | 12X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_80b5abd6-cecb-4545-9e93-4e3b37760c19_medium.png?v=1713902345)
12X22 ND-RSD NC | Rectangular Damper | 12X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X22 ND-RSD NC
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![EWC Controls 12X14 ND-RSD NC Rectangular Damper | 12X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_bea94c73-3a75-452c-9ed6-08a5a1fd4027_medium.png?v=1713902337)
12X14 ND-RSD NC | Rectangular Damper | 12X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X14 ND-RSD NC
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![EWC Controls 10X28 ND-RSD NC Rectangular Damper | 10X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_5e0e6b5e-d4bd-46d2-aa88-ab2700a8ccb3_medium.png?v=1713902358)
10X28 ND-RSD NC | Rectangular Damper | 10X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10X28 ND-RSD NC
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