zone dampers
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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-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-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 HD-NA-2816 28 x 16 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_44798b05-4333-4421-9893-3e6cdc1ce280_medium.png?v=1719992357)
HD-NA-2816 | 28 x 16 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2816
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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 HD-NA-3212 32 x 12 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_75148314-46f3-450b-a29e-c930a974c80a_medium.png?v=1719992376)
HD-NA-3212 | 32 x 12 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3212
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![iO HVAC Controls HD-NA-3618 36 x 18 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_a83ce016-488b-41b1-a5c3-216636e5b6a8_medium.png?v=1719992367)
HD-NA-3618 | 36 x 18 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3618
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![iO HVAC Controls HD-NA-3414 34 x 14 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_409eab74-1416-4a83-b79c-173a1c3f9d2b_medium.png?v=1719992357)
HD-NA-3414 | 34 x 14 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3414
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![iO HVAC Controls MBD-0808 Manual Rectangular 08 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_d51359fd-0c4f-4943-a736-2415561a3532_medium.jpg?v=1719992374)
MBD-0808 | Manual Rectangular 08 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-0808
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![iO HVAC Controls MBD-0806 Manual Rectangular 08 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_c75679d0-3449-4944-b9e9-3a5c39e5ef85_medium.jpg?v=1719992372)
MBD-0806 | Manual Rectangular 08 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-0806
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![iO HVAC Controls HD-NA-2614 26 x 14 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_c81eedbd-39df-4b98-a61a-3efdc2c4e183_medium.png?v=1719992367)
HD-NA-2614 | 26 x 14 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2614
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![iO HVAC Controls HD-NA-2422 24 x 22 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_2e0a9c74-a95f-4ffb-a319-1d31893e2794_medium.png?v=1719992353)
HD-NA-2422 | 24 x 22 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2422
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![iO HVAC Controls HD-NA-3810 38 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_7e784776-397b-4f47-ad04-b1e54b43bbee_medium.png?v=1719992347)
HD-NA-3810 | 38 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3810
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![iO HVAC Controls HD-NA-3420 34 x 20 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_238e9852-5dbf-45e1-b173-c5ab7eaa927c_medium.png?v=1719992347)
HD-NA-3420 | 34 x 20 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3420
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![iO HVAC Controls HD-NA-3822 38 x 22 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_cedfc1db-ef71-4cc9-aa02-4df98c996ad7_medium.png?v=1719992343)
HD-NA-3822 | 38 x 22 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3822
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![iO HVAC Controls HD-NA-3616 36 x 16 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_854c83d8-dc9f-433f-a1d6-58c8000bce19_medium.png?v=1719992342)
HD-NA-3616 | 36 x 16 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3616
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![iO HVAC Controls HD-NA-3208 32 x 08 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_b986f8fd-ff19-427e-a7c5-a609fb9f4957_medium.png?v=1719992347)
HD-NA-3208 | 32 x 08 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3208
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![iO HVAC Controls HD-NA-2626 26 x 26 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_0715bd76-c976-4355-877b-679905363fbf_medium.png?v=1719992342)
HD-NA-2626 | 26 x 26 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2626
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![iO HVAC Controls HD-NA-3612 36 x 12 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_96f6a5d4-1755-4654-8ad7-dcd6f7c1c727_medium.png?v=1719992343)
HD-NA-3612 | 36 x 12 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3612
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![iO HVAC Controls HD-NA-2416 24 x 16 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_0c82ecb0-ff7f-476d-8c7f-f1a49aafd90e_medium.png?v=1719992342)
HD-NA-2416 | 24 x 16 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2416
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![iO HVAC Controls HD-NA-3020 30 x 20 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_18d5722b-2f43-4578-8471-2e098e16562e_medium.png?v=1719992342)
HD-NA-3020 | 30 x 20 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3020
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![iO HVAC Controls HD-NA-2010 20 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_7458a29f-e9cb-464f-a00f-5a4fde29f163_medium.png?v=1719992342)
HD-NA-2010 | 20 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2010
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![iO HVAC Controls HD-NA-3412 34 x 12 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_3afaa204-a5e1-4086-a723-eb922f5435fe_medium.png?v=1719992342)
HD-NA-3412 | 34 x 12 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3412
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![iO HVAC Controls HD-NA-3624 36 x 24 Two-Position Zone Damper -No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_dfc56e61-9cdb-453c-b49f-2eeedd686340_medium.png?v=1719992338)
HD-NA-3624 | 36 x 24 Two-Position Zone Damper -No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3624
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