Dampers Spring return (no) Spring return
From rectangular to motorized dampers, from bypass dampers to zoning panels: we’ve got it all! Find what you are looking for in our stock of over 2,000 products.
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![iO HVAC Controls HD-3010-BM Rectangular 30 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_af1986d3-0949-4311-97d7-4ba00e7608c1_medium.jpg?v=1715804916)
HD-3010-BM | Rectangular 30 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3010-BM
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![iO HVAC Controls HD-3010 Rectangular 30 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_8bff3836-0412-45e1-b7d9-8d061aacc8a4_medium.jpg?v=1715804960)
HD-3010 | Rectangular 30 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3010
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![iO HVAC Controls HD-3008-BM Rectangular 30 x 08 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_2a1f3157-75a5-405d-869a-fd590a69a6aa_medium.jpg?v=1715804907)
HD-3008-BM | Rectangular 30 x 08 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3008-BM
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![iO HVAC Controls HD-3008 Rectangular 30 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_88b909f1-e3c7-473b-bb2b-dd3cc893519e_medium.jpg?v=1715804906)
HD-3008 | Rectangular 30 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3008
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![iO HVAC Controls HD-3006 Rectangular 30 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_5c30526f-61e9-442f-8ce6-92bc384a6005_medium.jpg?v=1715804944)
HD-3006 | Rectangular 30 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3006
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![iO HVAC Controls HD-2822 Rectangular 28 x 22 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_c2f823e4-2126-4210-9da9-07680a592962_medium.jpg?v=1715804864)
HD-2822 | Rectangular 28 x 22 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2822
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![iO HVAC Controls HD-2820 Rectangular 28 x 20 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_37587c2c-d82d-4999-80a2-e9725cb3273b_medium.jpg?v=1715804962)
HD-2820 | Rectangular 28 x 20 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2820
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![iO HVAC Controls HD-2818 Rectangular 28 x 18 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_7350300b-60b2-443c-91f2-6979e7dc93ff_medium.jpg?v=1715804926)
HD-2818 | Rectangular 28 x 18 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2818
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![iO HVAC Controls HD-2816-BM Rectangular 28 x 16 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_98dbd679-0bc8-4bac-9542-c2bc783ed8e6_medium.jpg?v=1715804893)
HD-2816-BM | Rectangular 28 x 16 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2816-BM
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![iO HVAC Controls HD-2816 Rectangular 28 x 16 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_a4f125c8-3eb7-4eba-a2f1-e113e300f9c4_medium.jpg?v=1715804912)
HD-2816 | Rectangular 28 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2816
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![iO HVAC Controls HD-2814-BM Rectangular 28 x 14 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_10296c7c-9125-4649-a038-517b22ed4923_medium.jpg?v=1715804926)
HD-2814-BM | Rectangular 28 x 14 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2814-BM
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![iO HVAC Controls HD-2814 Rectangular 28 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_f62120fd-e370-45d6-a11f-1e463bcd0ba4_medium.jpg?v=1715804943)
HD-2814 | Rectangular 28 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2814
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![iO HVAC Controls HD-2812-BM Rectangular 28 x 12 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_ba542013-4508-4373-bfe9-0fb902c2fca3_medium.jpg?v=1715804917)
HD-2812-BM | Rectangular 28 x 12 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2812-BM
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![iO HVAC Controls HD-2812 Rectangular 28 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_525074c2-f721-48a8-8ef3-5e9a0b494cf1_medium.jpg?v=1715804926)
HD-2812 | Rectangular 28 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2812
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![iO HVAC Controls HD-2810-BM Rectangular 28 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_4a176d6b-b37b-4c23-8b0c-7afdf45928ee_medium.jpg?v=1715804884)
HD-2810-BM | Rectangular 28 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2810-BM
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![iO HVAC Controls HD-2810 Rectangular 28 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_e3e9e232-7a70-4aac-ae6c-73e1dc244d86_medium.jpg?v=1715804893)
HD-2810 | Rectangular 28 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2810
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![iO HVAC Controls HD-2808-BM Rectangular 28 x 08 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_7072375d-9a6b-498a-aabe-fb817f9d2272_medium.jpg?v=1715804912)
HD-2808-BM | Rectangular 28 x 08 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2808-BM
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![iO HVAC Controls HD-2808 Rectangular 28 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_0ac4ebda-9e16-4207-9b65-4b9667cecb50_medium.jpg?v=1715804948)
HD-2808 | Rectangular 28 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2808
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![iO HVAC Controls HD-2626 Rectangular 26 x 26 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_0fa81271-2647-4662-bf55-9a5e6a9478de_medium.jpg?v=1715804930)
HD-2626 | Rectangular 26 x 26 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2626
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![iO HVAC Controls HD-2624 Rectangular 26 x 20 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_c1b8e99e-f5ed-4ed8-8cad-07192a2a7559_medium.jpg?v=1715804885)
HD-2624 | Rectangular 26 x 20 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2624
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![iO HVAC Controls HD-2620 Rectangular 26 x 20 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_d6117f76-6841-4a25-83ec-5d43fe95743b_medium.jpg?v=1715804939)
HD-2620 | Rectangular 26 x 20 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2620
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![iO HVAC Controls HD-2618-BM Rectangular 26 x 18 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_79d0038d-eccd-4069-87c0-b48261027d16_medium.jpg?v=1715804907)
HD-2618-BM | Rectangular 26 x 18 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2618-BM
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![iO HVAC Controls HD-2618 Rectangular 26 x 18 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_667c5c6f-b373-42b4-9631-39d40120fd3d_medium.jpg?v=1715804966)
HD-2618 | Rectangular 26 x 18 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2618
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![iO HVAC Controls HD-2616-BM Rectangular 26 x 16 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_e9a4657a-66af-4e52-b621-5395509bb4b7_medium.jpg?v=1715804904)
HD-2616-BM | Rectangular 26 x 16 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2616-BM
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Brand: Functional Devices
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