dampers
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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-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 iO-FAV-12 Fresh air ventilation control panel, 12" round 2-position damper, 120/24 20VA transformer | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-FAV-12_medium.jpg?v=1719992342)
iO-FAV-12 | Fresh air ventilation control panel, 12" round 2-position damper, 120 / 24 20VA transformer | iO HVAC Controls
Brand: iO HVAC Controls
SKU: iO-FAV-12
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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 iO-FAV-IH FAV Intake Hood - White 6" | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/io-hvac-controls-io-fav-ih_medium.jpg?v=1719992347)
iO-FAV-IH | FAV Intake Hood - White 6" | iO HVAC Controls
Brand: iO HVAC Controls
SKU: iO-FAV-IH
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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 iO-FAV-10 Fresh Air Ventilation Kit - 10" | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-FAVKIT_web_a46c2520-389f-4af6-bea4-d8709a0d5a8b_medium.jpg?v=1719992341)
iO-FAV-10 | Fresh Air Ventilation Kit - 10" | iO HVAC Controls
Brand: iO HVAC Controls
SKU: iO-FAV-10
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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-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-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-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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![iO HVAC Controls HD-NA-1410 14 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_19cbe678-29d3-47d2-9b23-6269bd8bf407_medium.png?v=1719992337)
HD-NA-1410 | 14 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1410
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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 HD-NA-3620 36 x 20 Two-Position Zone Damper No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_f5888530-793a-4060-a984-7c765e159f2f_medium.png?v=1719992337)
HD-NA-3620 | 36 x 20 Two-Position Zone Damper No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3620
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![iO HVAC Controls HD-NA-3628 36 x 28 Two-Position Zone Damper No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_d2a5b066-8889-473d-bcbe-12a4cb5ddfe6_medium.png?v=1719992337)
HD-NA-3628 | 36 x 28 Two-Position Zone Damper No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3628
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![iO HVAC Controls HD-NA-2818 28 x 18 Two-Position Zone Damper -No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_278d7c6d-573c-41e2-966d-7f3c7c44c8cf_medium.png?v=1719992337)
HD-NA-2818 | 28 x 18 Two-Position Zone Damper -No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2818
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![iO HVAC Controls HD-NA-3016 30 x 16 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_47f92edc-250d-422e-93aa-a7b377167163_medium.png?v=1720007144)
HD-NA-3016 | 30 x 16 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3016
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![iO HVAC Controls HD-NA-2822 28 x 22 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_5ed9ad0f-419c-481c-a565-ff21faa7c271_medium.png?v=1720007091)
HD-NA-2822 | 28 x 22 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2822
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![iO HVAC Controls HD-NA-2808 28 x 08 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_18f750e8-a24d-4cd6-8afc-2007445a08ac_medium.png?v=1719992333)
HD-NA-2808 | 28 x 08 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2808
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![iO HVAC Controls HD-NA-2410 24 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_8800fcf9-c864-4c80-83e8-3c705e2bd808_medium.png?v=1719992332)
HD-NA-2410 | 24 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2410
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![iO HVAC Controls HD-NA-3410 34 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_8bf0feee-4351-416f-a445-4ce74785fb78_medium.png?v=1719992337)
HD-NA-3410 | 34 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-3410
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