dampers (hidden without zone panels)
Zone dampers for HVAC systems without zone control panels. Order Individual 24V motorized dampers for creating HVAC zones today at Blackhawk Supply.
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![iO HVAC Controls HD-BM-NA-3412 34 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_d415d7bf-2710-45ca-a286-68b3c85a8703_medium.png?v=1708912556)
HD-BM-NA-3412 | 34 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3412
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![iO HVAC Controls HD-BM-NA-3410 34 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_fc2f16f8-83f1-4573-ad91-f1cc93654c5c_medium.png?v=1708912520)
HD-BM-NA-3410 | 34 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3410
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![iO HVAC Controls HD-BM-NA-3220 32 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_59e6822e-dcc6-43b9-9c59-af253e809354_medium.png?v=1708912520)
HD-BM-NA-3220 | 32 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3220
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![iO HVAC Controls HD-BM-NA-3218 32 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_f3a6f038-21d3-4be3-b73d-01bd9f4f2b0d_medium.png?v=1708912525)
HD-BM-NA-3218 | 32 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3218
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![iO HVAC Controls HD-BM-NA-3212 32 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_472e7a61-ccb5-4d58-92d4-078516054b71_medium.png?v=1708912516)
HD-BM-NA-3212 | 32 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3212
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![iO HVAC Controls HD-BM-NA-3210 32 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_e4c345b9-5dff-46b0-a99f-e4ec6ae99f05_medium.png?v=1708912519)
HD-BM-NA-3210 | 32 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3210
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![iO HVAC Controls HD-BM-NA-3208 32 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_medium.png?v=1708912519)
HD-BM-NA-3208 | 32 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3208
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![iO HVAC Controls HD-BM-NA-3020 30 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_af58ed1f-4886-4f4b-bdfd-de1b8de1425c_medium.png?v=1708912515)
HD-BM-NA-3020 | 30 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3020
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![iO HVAC Controls HD-BM-NA-3018 30 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_47152d4b-c03e-4f21-a888-d85a992d7209_medium.png?v=1708912516)
HD-BM-NA-3018 | 30 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3018
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![iO HVAC Controls HD-BM-NA-3014 30 x 14 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_22f1bc4d-559b-475c-bc04-45984c62196f_medium.png?v=1708912520)
HD-BM-NA-3014 | 30 x 14 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3014
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![iO HVAC Controls HD-BM-NA-3012 30 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_80e62c8d-0b16-403c-9abd-406eb6e90ae2_medium.png?v=1708912557)
HD-BM-NA-3012 | 30 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3012
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![iO HVAC Controls HD-BM-NA-3010 30 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_a998484b-7c04-465e-84ac-aa040b528863_medium.png?v=1708912520)
HD-BM-NA-3010 | 30 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3010
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![iO HVAC Controls HD-BM-NA-3008 30 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_9efa6e2d-126c-492a-a03a-7870fc2f20f9_medium.png?v=1708912520)
HD-BM-NA-3008 | 30 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3008
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![iO HVAC Controls HD-BM-NA-2820 28 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_e21efea8-c349-497c-83e5-2e715b85f3a0_medium.png?v=1708912520)
HD-BM-NA-2820 | 28 x 20 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2820
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![iO HVAC Controls HD-BM-NA-2816 28 x 16 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_1646ef57-342b-4467-8054-a1829cc87b65_medium.png?v=1708912519)
HD-BM-NA-2816 | 28 x 16 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2816
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![iO HVAC Controls HD-BM-NA-2814 28 x 14 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_20029fce-4f30-4f05-9f35-cfb296e2185e_medium.png?v=1708912557)
HD-BM-NA-2814 | 28 x 14 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2814
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![iO HVAC Controls HD-BM-NA-2812 28 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_cb8d52fb-f43f-4293-bd8b-64f18d1b1dce_medium.png?v=1708912515)
HD-BM-NA-2812 | 28 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2812
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![iO HVAC Controls HD-BM-NA-2810 28 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_644d84ab-4e9a-43c2-a623-03dc245f6163_medium.png?v=1708912512)
HD-BM-NA-2810 | 28 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2810
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![iO HVAC Controls HD-BM-NA-2808 28 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_ff5a2b24-84e8-4c1c-9823-15f46aa04f42_medium.png?v=1708912520)
HD-BM-NA-2808 | 28 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2808
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![iO HVAC Controls HD-BM-NA-2618 26 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_85995f29-93ac-45fe-9a9f-10abbb4e512e_medium.png?v=1708912515)
HD-BM-NA-2618 | 26 x 18 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2618
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![iO HVAC Controls HD-BM-NA-2616 26 x 16 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_8e9e1362-1d6b-455b-93bb-ef4ebb5cf66c_medium.png?v=1708912512)
HD-BM-NA-2616 | 26 x 16 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2616
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![iO HVAC Controls HD-BM-NA-2614 26 x 14 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_0c30f92d-cff6-474c-b582-7d3a810368f0_medium.png?v=1708912533)
HD-BM-NA-2614 | 26 x 14 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2614
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![iO HVAC Controls HD-BM-NA-2612 26 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_857766e4-f1e5-440a-875a-16b019b556e3_medium.png?v=1708912515)
HD-BM-NA-2612 | 26 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2612
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![iO HVAC Controls HD-BM-NA-2610 26 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/HD-NA-XXXX_7b3ca2eb-404b-4777-a99e-74424a3a263c_medium.png?v=1708912515)
HD-BM-NA-2610 | 26 x 10 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-2610
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