Dampers Non-spring return 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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![iO HVAC Controls MZR-1404-B-PC Motorized 14 x 04 Zone Register - Brown | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-MZR_web_medium.jpg?v=1708912728)
MZR-1404-B-PC | Motorized 14 x 04 Zone Register - Brown | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MZR-1404-B-PC
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![iO HVAC Controls MZR-1206-W-PC Motorized 12 x 06 Zone Register - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-MZR_web_8ee71a69-f634-4f80-865c-55f63eb00af0_medium.jpg?v=1708912720)
MZR-1206-W-PC | Motorized 12 x 06 Zone Register - White | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MZR-1206-W-PC
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![iO HVAC Controls MZR-1204-W-PO Motorized 12 x 04 Zone Register - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-MZR_web_71bc38a9-adbe-4099-b0f1-cf7544b8a70a_medium.jpg?v=1708912719)
MZR-1204-W-PO | Motorized 12 x 04 Zone Register - White | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MZR-1204-W-PO
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![iO HVAC Controls MZR-1006-W-PO Motorized 10 x 06 Zone Register - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-MZR_web_de760b35-93ff-4054-87fb-b0b163848cff_medium.jpg?v=1708912674)
MZR-1006-W-PO | Motorized 10 x 06 Zone Register - White | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MZR-1006-W-PO
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![iO HVAC Controls MZR-1006-W-PC Motorized 10 x 06 Zone Register - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-MZR_web_e00e678f-27ef-4041-99bf-04538aba20a5_medium.jpg?v=1708912670)
MZR-1006-W-PC | Motorized 10 x 06 Zone Register - White | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MZR-1006-W-PC
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![iO HVAC Controls EB-3010 Electronic 30 x 10 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_cddd2d7d-075e-464c-94df-527ef86737d8_medium.jpg?v=1708912456)
EB-3010 | Electronic 30 x 10 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-3010
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![iO HVAC Controls EB-2620 Electronic 26 x 20 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_a31d276f-6080-4e82-9d5c-074114abcc65_medium.jpg?v=1708912433)
EB-2620 | Electronic 26 x 20 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-2620
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![iO HVAC Controls EB-2412 Electronic 24 x 12 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_bcfb1d1e-7915-45b5-9a51-cba38fe24ecd_medium.jpg?v=1708912452)
EB-2412 | Electronic 24 x 12 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-2412
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![iO HVAC Controls EB-2220 Electronic 22 x 20 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_01e7e342-e790-4c48-8f05-0cd520f5440b_medium.jpg?v=1708912455)
EB-2220 | Electronic 22 x 20 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-2220
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![iO HVAC Controls EB-2018 Electronic 20 18 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_c346f7d0-937a-43ae-8588-b792d184d9b7_medium.jpg?v=1708912483)
EB-2018 | Electronic 20 18 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-2018
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![iO HVAC Controls EB-2012 Electronic 20 x 12 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_b0a4e433-b0e2-4afb-ba34-4383511503cf_medium.jpg?v=1708912425)
EB-2012 | Electronic 20 x 12 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-2012
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![iO HVAC Controls EB-16 Electronic 16" Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XX_c4ab1600-9034-4418-9610-bb063511148b_medium.jpg?v=1708912479)
EB-16 | Electronic 16" Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-16
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![iO HVAC Controls EB-1412 Electronic 14 x 12 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_c27cd627-0b02-4630-90c7-d593a232c521_medium.jpg?v=1708912452)
EB-1412 | Electronic 14 x 12 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-1412
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![iO HVAC Controls EB-1212 Electronic 12 x 12 Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-EB-XXXX_a87cd9c4-de1e-4a65-ac5e-80f1131aa103_medium.jpg?v=1708912502)
EB-1212 | Electronic 12 x 12 Bypass Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: EB-1212
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![iO HVAC Controls CRD-06 Carrier Compatible 6" Retro Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CRDXX_44642170-9fde-41d4-9e8f-941b907350b1_medium.jpg?v=1708912384)
CRD-06 | Carrier Compatible 6" Retro Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CRD-06
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![iO HVAC Controls CD-3620 Carrier 36 x 20 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_3419ab74-022d-4334-9a0b-4b61bd645511_medium.jpg?v=1708912406)
CD-3620 | Carrier 36 x 20 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-3620
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![iO HVAC Controls CD-3618 Carrier 36 x 18 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_0c531a13-66b6-4f54-82db-01da6814fdd0_medium.jpg?v=1708912379)
CD-3618 | Carrier 36 x 18 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-3618
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![iO HVAC Controls CD-3616 Carrier 36 x 16 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_c4efe4b8-d6ac-49fc-832b-b7cfe8033e8a_medium.jpg?v=1708912392)
CD-3616 | Carrier 36 x 16 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-3616
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![iO HVAC Controls CD-3418 Carrier 34 x 18 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_2e8bff33-c731-4ca7-a10f-e644ea56ec85_medium.jpg?v=1708912402)
CD-3418 | Carrier 34 x 18 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-3418
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![iO HVAC Controls CD-2424 Carrier 24 x 24 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_2aeada72-a20c-40d2-a6db-166da66aaf03_medium.jpg?v=1708912392)
CD-2424 | Carrier 24 x 24 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2424
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![iO HVAC Controls CD-2412 Carrier 24 x 12 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_3383ce7e-e6ae-4e6c-8bd2-f08368e45745_medium.jpg?v=1708912374)
CD-2412 | Carrier 24 x 12 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2412
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![iO HVAC Controls CD-2012-BM Carrier 20 x 12 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_1357cdd1-4700-47fb-8ce4-5c9f31ed314d_medium.jpg?v=1708912365)
CD-2012-BM | Carrier 20 x 12 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2012-BM
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![iO HVAC Controls CD-2010 Carrier 20 x 10 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_91ad3dd6-72b0-4930-921e-0879470b829c_medium.jpg?v=1708912352)
CD-2010 | Carrier 20 x 10 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2010
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![iO HVAC Controls CD-1610 Carrier 16 x 10 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_00a212ae-436f-45a6-9d38-b0ba6c1c9d6b_medium.jpg?v=1708912366)
CD-1610 | Carrier 16 x 10 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1610
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