Dampers Spring return (nc) Spring return
From rectangular to motorized dampers, from bypass dampers to zoning panels: we’ve got it all! Find what you are looking for in our stock of over 2,000 products.
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![EWC Controls 10X10 ND-RSD NC Rectangular Damper | 10X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4ad6b0d8-8c22-4083-ab77-d9dae2b9b498_medium.png?v=1713902290)
10X10 ND-RSD NC | Rectangular Damper | 10X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X10 ND-RSD NC
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![iO HVAC Controls MBD-06 iO HVAC Controls Manual Balancing Damper 6 Round with locking quad | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/MBD-06_medium.jpg?v=1708912610)
MBD-06 | iO HVAC Controls Manual Balancing Damper 6 Round with locking quad | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-06
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![iO HVAC Controls MBD-2412 Manual Rectangular 24 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_e2cbcf30-876d-4f64-9386-f1f84b6be33e_medium.jpg?v=1708912653)
MBD-2412 | Manual Rectangular 24 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-2412
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![iO HVAC Controls MBD-1612 Manual Rectangular 16 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_ea890fa6-2fe1-4300-a033-80c392308036_medium.jpg?v=1708912623)
MBD-1612 | Manual Rectangular 16 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1612
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![iO HVAC Controls MBD-1610-BM Manual Rectangular 16 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_e4b8c3d2-1fe8-4875-bda1-8e95497bc6ff_medium.jpg?v=1708912623)
MBD-1610-BM | Manual Rectangular 16 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1610-BM
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![iO HVAC Controls MBD-1212 Manual Rectangular 12 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_5327566a-1214-4816-bdd3-cd7b4459bea1_medium.jpg?v=1708912610)
MBD-1212 | Manual Rectangular 12 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1212
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![iO HVAC Controls MBD-1208 Manual Rectangular 12 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/balancing_damper_rect_27a90c48-dc17-41a8-bd07-b9a26b3d2754_medium.jpg?v=1708912612)
MBD-1208 | Manual Rectangular 12 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1208
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![Braeburn 129014 Round Damper | 14" Round Motorized Damper Spring Return - Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/PO_SR-Round_9456a2ba-38c6-4b20-addc-131525a89ef5_medium.jpg?v=1708892732)
129014 | Round Damper | 14" Round Motorized Damper Spring Return - Normally Closed | Braeburn
Brand: Braeburn
SKU: 129014
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![EWC Controls 18X24 ND-RSD NC Rectangular Damper | 18X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ef2e5558-64e3-4f7a-a580-560095a758cb_medium.png?v=1713902411)
18X24 ND-RSD NC | Rectangular Damper | 18X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X24 ND-RSD NC
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![EWC Controls 16X20 ND-RSD NC Rectangular Damper | 16X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_393830d7-599a-475b-a0c7-320235979869_medium.png?v=1713902371)
16X20 ND-RSD NC | Rectangular Damper | 16X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X20 ND-RSD NC
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![EWC Controls 14X20 ND-RSD NC Rectangular Damper | 14X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9b55f680-6992-4c05-8a0d-b2c1620cc723_medium.png?v=1713902354)
14X20 ND-RSD NC | Rectangular Damper | 14X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X20 ND-RSD NC
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![EWC Controls 14X16 ND-RSD NC Rectangular Damper | 14X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_db7bb839-f5a8-4b95-b4d0-e2cb947b00a4_medium.png?v=1713902371)
14X16 ND-RSD NC | Rectangular Damper | 14X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X16 ND-RSD NC
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![EWC Controls 12X18 ND-RSD NC Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f7024c25-1ea2-4d3a-a0e8-e0505b879b0b_medium.png?v=1713902331)
12X18 ND-RSD NC | Rectangular Damper | 12X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X18 ND-RSD NC
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![EWC Controls 10X22 ND-RSD NC Rectangular Damper | 10X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_8c2b01b1-ddfe-463f-990b-86d93701915b_medium.png?v=1713902391)
10X22 ND-RSD NC | Rectangular Damper | 10X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X22 ND-RSD NC
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![EWC Controls 10X12 ND-RSD NC Rectangular Damper | 10X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_45ea24b4-e003-4a42-a35f-b8bf737460b0_medium.png?v=1713902297)
10X12 ND-RSD NC | Rectangular Damper | 10X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X12 ND-RSD NC
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![EWC Controls 8X18 ND-RSD NC Rectangular Damper | 8X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_eeb5dcf2-1672-4f51-91f7-a11921381ec2_medium.png?v=1713902511)
8X18 ND-RSD NC | Rectangular Damper | 8X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8X18 ND-RSD NC
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![EWC Controls 8X16 ND-RSD NC Rectangular Damper | 8X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_143c2109-5fe2-4f66-b538-787b76ecc86d_medium.png?v=1713902502)
8X16 ND-RSD NC | Rectangular Damper | 8X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8X16 ND-RSD NC
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![EWC Controls 30X30 ND-RSD NC Rectangular Damper | 30X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_bfe61570-2c60-47fa-a5dd-7248b802ce23_medium.png?v=1713902460)
30X30 ND-RSD NC | Rectangular Damper | 30X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X30 ND-RSD NC
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![EWC Controls 30X20 ND-RSD NC Rectangular Damper | 30X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2b050bcc-2b10-4410-9a29-e8a74b6837fd_medium.png?v=1713902480)
30X20 ND-RSD NC | Rectangular Damper | 30X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X20 ND-RSD NC
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![EWC Controls 30X18 ND-RSD NC Rectangular Damper | 30X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_20b975a2-86ab-4ff3-bb88-3c2854b0284a_medium.png?v=1713902502)
30X18 ND-RSD NC | Rectangular Damper | 30X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X18 ND-RSD NC
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![EWC Controls 24X12 ND-RSD NC Rectangular Damper | 24X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c75d0705-4a1c-44a9-992b-4485c522f5b0_medium.png?v=1713902418)
24X12 ND-RSD NC | Rectangular Damper | 24X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X12 ND-RSD NC
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![EWC Controls 22X16 ND-RSD NC Rectangular Damper | 22X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_1957a863-2cde-4ed9-bfec-bb7d0f95a748_medium.png?v=1713902475)
22X16 ND-RSD NC | Rectangular Damper | 22X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X16 ND-RSD NC
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![EWC Controls 22X10 ND-RSD NC Rectangular Damper | 22X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0c810f0a-4643-479f-baf3-8a1ae88012b1_medium.png?v=1713902442)
22X10 ND-RSD NC | Rectangular Damper | 22X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 22X10 ND-RSD NC
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![EWC Controls 14X14 ND-RSD NC Rectangular Damper | 14X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4164cd5b-7ea0-442c-b328-296c427c4393_medium.png?v=1713902375)
14X14 ND-RSD NC | Rectangular Damper | 14X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 14X14 ND-RSD NC
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