Io hvac controls Spring return (nc) 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 MBD-2012 Manual Rectangular 20 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_a01c8b94-9b48-4bf0-980a-321cdcfcdafa_medium.jpg?v=1719992378)
MBD-2012 | Manual Rectangular 20 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-2012
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![iO HVAC Controls MBD-2010-BM Manual Rectangular 20 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_5cd48f13-ec42-42e0-a9e3-e3fa4df76ac0_medium.jpg?v=1719992386)
MBD-2010-BM | Manual Rectangular 20 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-2010-BM
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![iO HVAC Controls MBD-2008-BM Manual Rectangular 20 x 08 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_e3008c42-ebc4-4881-af62-17a1cc420466_medium.jpg?v=1719992424)
MBD-2008-BM | Manual Rectangular 20 x 08 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-2008-BM
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![iO HVAC Controls MBD-2006-BM Manual Rectangular 20 x 06 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_7c9623dc-0d6e-427a-8ff1-ef176e470c01_medium.jpg?v=1719992464)
MBD-2006-BM | Manual Rectangular 20 x 06 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-2006-BM
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![iO HVAC Controls MBD-2006 Manual Rectangular 20 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_bde42820-63c6-402c-a13d-569068cd2631_medium.jpg?v=1719992494)
MBD-2006 | Manual Rectangular 20 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-2006
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![iO HVAC Controls MBD-1818 Manual Rectangular 18 x 18 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_ce6d3394-d7ac-472e-ab03-eaa15a53cd3a_medium.jpg?v=1719992498)
MBD-1818 | Manual Rectangular 18 x 18 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1818
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![iO HVAC Controls MBD-1816-BM Manual Rectangular 18 x 16 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_597d2857-521e-4156-8e92-fec0f8fa5832_medium.jpg?v=1719992455)
MBD-1816-BM | Manual Rectangular 18 x 16 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1816-BM
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![iO HVAC Controls MBD-1816 Manual Rectangular 18 x 16 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_a26db024-3d1c-4e9e-8b37-e264ff8d1225_medium.jpg?v=1719992362)
MBD-1816 | Manual Rectangular 18 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1816
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![iO HVAC Controls MBD-1814-BM Manual Rectangular 18 x 14 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_6cbdc56a-1208-42a2-a661-2c8db4fcdcb6_medium.jpg?v=1719992348)
MBD-1814-BM | Manual Rectangular 18 x 14 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1814-BM
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![iO HVAC Controls MBD-1814 Manual Rectangular 18 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_19145104-ab6c-4b53-ba18-121422945fc5_medium.jpg?v=1719992382)
MBD-1814 | Manual Rectangular 18 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1814
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![iO HVAC Controls MBD-1812-BM Manual Rectangular 18 x 12 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_6ad44b74-e188-420a-bc49-3efdef3c89ee_medium.jpg?v=1719992386)
MBD-1812-BM | Manual Rectangular 18 x 12 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1812-BM
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![iO HVAC Controls MBD-1812 Manual Rectangular 18 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_a2051072-b25b-48e0-99a9-ee0e278207cc_medium.jpg?v=1719992342)
MBD-1812 | Manual Rectangular 18 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1812
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![iO HVAC Controls MBD-1810-BM Manual Rectangular 18 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_1bb18461-a64d-4706-88e5-55b951f748b2_medium.jpg?v=1719992342)
MBD-1810-BM | Manual Rectangular 18 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1810-BM
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![iO HVAC Controls MBD-1808 Manual Rectangular 18 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_6071a553-2fc4-4742-a60c-1b508c0821ec_medium.jpg?v=1719992333)
MBD-1808 | Manual Rectangular 18 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1808
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![iO HVAC Controls MBD-1806-BM Manual Rectangular 18 x 06 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_365b4b3f-e360-440a-a4a4-aef2c95f9924_medium.jpg?v=1719992352)
MBD-1806-BM | Manual Rectangular 18 x 06 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1806-BM
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![iO HVAC Controls MBD-1806 Manual Rectangular 18 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_dad81e4e-5c5b-4b56-a927-a45a520a5019_medium.jpg?v=1719992337)
MBD-1806 | Manual Rectangular 18 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1806
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![iO HVAC Controls MBD-1614-BM Manual Rectangular 16 x 14 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_1a9a6644-5448-4352-9fa9-a25f4c1d8fee_medium.jpg?v=1719992362)
MBD-1614-BM | Manual Rectangular 16 x 14 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1614-BM
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![iO HVAC Controls MBD-1614 Manual Rectangular 16 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_6693c3d2-643d-4615-95fc-7227fb321c53_medium.jpg?v=1719992362)
MBD-1614 | Manual Rectangular 16 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1614
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![iO HVAC Controls MBD-1612-BM Manual Rectangular 16 x 12 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_dbbcbf10-34ad-46cd-84ad-a153596d0197_medium.jpg?v=1719992362)
MBD-1612-BM | Manual Rectangular 16 x 12 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1612-BM
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![iO HVAC Controls MBD-1606-BM Manual Rectangular 16 x 06 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_2e3542aa-125f-4c49-aeab-2addb90e617f_medium.jpg?v=1719992395)
MBD-1606-BM | Manual Rectangular 16 x 06 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1606-BM
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![iO HVAC Controls MBD-1606 Manual Rectangular 16 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_3c92be0e-33d7-4067-a4c8-e2c189d7ecb3_medium.jpg?v=1719992358)
MBD-1606 | Manual Rectangular 16 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1606
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![iO HVAC Controls MBD-1414 Manual Rectangular 14 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_ace79a9d-a571-4da5-90e8-bf1d458462e8_medium.jpg?v=1719992353)
MBD-1414 | Manual Rectangular 14 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1414
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![iO HVAC Controls MBD-1412 Manual Rectangular 14 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_6ac01104-c82d-42f7-92a3-7128788f58ab_medium.jpg?v=1719992376)
MBD-1412 | Manual Rectangular 14 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1412
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![iO HVAC Controls MBD-1410-BM Manual Rectangular 14 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_e1b1c542-704b-4899-bd61-afdda686e54e_medium.jpg?v=1720007090)
MBD-1410-BM | Manual Rectangular 14 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1410-BM
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