Io hvac controls Non-spring return Spring return
I/O HVAC controls and building automation systems for controlling HVAC equipment and integrating it with building management systems. Order now at Blackhawk Supply.
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![iO HVAC Controls CD-2210 Carrier 22 x 10 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_d266aec5-5a28-4cb4-92e6-b889e5a9cc83_medium.jpg?v=1708912411)
CD-2210 | Carrier 22 x 10 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2210
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![iO HVAC Controls CD-2208-BM Carrier 22 x 08 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_f33efcc2-e120-43a1-b9f2-095b363e0382_medium.jpg?v=1708912411)
CD-2208-BM | Carrier 22 x 08 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2208-BM
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![iO HVAC Controls CD-2208 Carrier 22 x 08 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_17379058-e444-4c55-a684-b50b9fe8d825_medium.jpg?v=1708912374)
CD-2208 | Carrier 22 x 08 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2208
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![iO HVAC Controls CD-2020 Carrier 20 x 20 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_9d6640ed-0957-4b6b-95c0-4531f72afc55_medium.jpg?v=1708912410)
CD-2020 | Carrier 20 x 20 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2020
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![iO HVAC Controls CD-2018-BM Carrier 20 x 18 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_63a9e044-eb18-4cc7-a885-e9b21efcbd84_medium.jpg?v=1708912387)
CD-2018-BM | Carrier 20 x 18 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2018-BM
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![iO HVAC Controls CD-2018 Carrier 20 x 18 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_4f8355a2-6cfe-40f7-a1fb-2be30f857f06_medium.jpg?v=1708912396)
CD-2018 | Carrier 20 x 18 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2018
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![iO HVAC Controls CD-2016-BM Carrier 20 x 16 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_2cadec37-14c7-4c51-996e-9bbf6e720482_medium.jpg?v=1708912374)
CD-2016-BM | Carrier 20 x 16 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2016-BM
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![iO HVAC Controls CD-2016 Carrier 20 x 16 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_8865fe64-f922-499a-8838-da23352e90a9_medium.jpg?v=1708912378)
CD-2016 | Carrier 20 x 16 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2016
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![iO HVAC Controls CD-2014-BM Carrier 20 x 14 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_a24d47f5-5f2c-4b84-a811-484165266761_medium.jpg?v=1708912415)
CD-2014-BM | Carrier 20 x 14 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2014-BM
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![iO HVAC Controls CD-2014 Carrier 20 x 14 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_8b7c1f77-f3be-432b-9853-5c18f3a54bc5_medium.jpg?v=1708912402)
CD-2014 | Carrier 20 x 14 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2014
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![iO HVAC Controls CD-2012 Carrier 20 x 12 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_078dc85c-971b-4101-92f8-6b1ee2b28a54_medium.jpg?v=1708912393)
CD-2012 | Carrier 20 x 12 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2012
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![iO HVAC Controls CD-2010-BM Carrier 20 x 10 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_7cd32d7e-9cf3-4374-b3ff-c3bf3de596fa_medium.jpg?v=1708912388)
CD-2010-BM | Carrier 20 x 10 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2010-BM
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![iO HVAC Controls CD-2008-BM Carrier 20 x 08 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_9a0ec819-6d67-405b-a84a-b732d82113db_medium.jpg?v=1708912352)
CD-2008-BM | Carrier 20 x 08 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2008-BM
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![iO HVAC Controls CD-2008 Carrier 20 x 08 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_5967422b-7e64-400d-8dad-082ba09da0ce_medium.jpg?v=1708912378)
CD-2008 | Carrier 20 x 08 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2008
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![iO HVAC Controls CD-2006-BM Carrier 20 x 06 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_86029514-aa03-4a12-8bd1-6cc623a32392_medium.jpg?v=1708912361)
CD-2006-BM | Carrier 20 x 06 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2006-BM
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![iO HVAC Controls CD-2006 Carrier 20 x 06 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_d5c7dc4a-464f-4ecf-991d-4af345782705_medium.jpg?v=1708912357)
CD-2006 | Carrier 20 x 06 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-2006
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![iO HVAC Controls CD-20 Carrier 20" Round Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXX_5a0fe8eb-95ea-442a-9e87-1694aaf713b5_medium.jpg?v=1708912411)
CD-20 | Carrier 20" Round Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-20
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![iO HVAC Controls CD-1818 Carrier 18 x 18 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_267010e0-1327-4abe-9c66-a2e3ea1c5ae2_medium.jpg?v=1708912348)
CD-1818 | Carrier 18 x 18 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1818
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![iO HVAC Controls CD-1816-BM Carrier 18 x 16 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_685de74b-fec8-46d1-8efd-52d0318f62ab_medium.jpg?v=1708912353)
CD-1816-BM | Carrier 18 x 16 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1816-BM
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![iO HVAC Controls CD-1816 Carrier 18 x 16 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_4a270268-4766-4613-bdf7-cad4f2e4d98b_medium.jpg?v=1708912397)
CD-1816 | Carrier 18 x 16 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1816
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![iO HVAC Controls CD-1814-BM Carrier 18 x 14 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_dd2c54cc-ebf6-4306-a488-ccccd884d633_medium.jpg?v=1708912396)
CD-1814-BM | Carrier 18 x 14 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1814-BM
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![iO HVAC Controls CD-1814 Carrier 18 x 14 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_191d6836-08fa-439c-8137-9e713cb70ffc_medium.jpg?v=1708912392)
CD-1814 | Carrier 18 x 14 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1814
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![iO HVAC Controls CD-1812-BM Carrier 18 x 12 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_37cbbd61-494f-443a-9ee3-b65f242b07f9_medium.jpg?v=1708912356)
CD-1812-BM | Carrier 18 x 12 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1812-BM
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![iO HVAC Controls CD-1812 Carrier 18 x 12 Rectangular Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO-CDXXXX_646442e5-5cf3-42fd-b9fc-e352e6bdf0cd_medium.jpg?v=1708912379)
CD-1812 | Carrier 18 x 12 Rectangular Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: CD-1812
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