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-3616 Rectangular 36 x 16 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_c4db4fcb-9b2f-4b60-8adb-8971a68ac61a_medium.jpg?v=1715804944)
HD-3616 | Rectangular 36 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3616
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![iO HVAC Controls HD-3612 Rectangular 36 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_800e470b-6565-45f3-8a39-aacde2f9b398_medium.jpg?v=1715804962)
HD-3612 | Rectangular 36 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3612
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![iO HVAC Controls HD-3610 Rectangular 36 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_af93a044-acfd-4dbc-aae4-357c2b0b5e90_medium.jpg?v=1715804930)
HD-3610 | Rectangular 36 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3610
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![iO HVAC Controls HD-3606-BM Rectangular 36 x 06 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_dbd8026e-289a-4775-bc99-748cd90fa540_medium.jpg?v=1715804885)
HD-3606-BM | Rectangular 36 x 06 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3606-BM
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![iO HVAC Controls HD-3606 Rectangular 36 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_99c6e2ce-3866-4a6a-9887-acd452d43b74_medium.jpg?v=1715804940)
HD-3606 | Rectangular 36 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3606
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![iO HVAC Controls HD-3410-BM Rectangular 34 x 10 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_b4a18e75-3f45-4699-a5c8-1a31220dc6b6_medium.jpg?v=1715804892)
HD-3410-BM | Rectangular 34 x 10 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3410-BM
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![iO HVAC Controls HD-3410 Rectangular 34 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_5ea77a4c-371f-4407-8983-a380929e7b73_medium.jpg?v=1715804939)
HD-3410 | Rectangular 34 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3410
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![iO HVAC Controls HD-3408 Rectangular 34 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_29ed0ac7-36e9-4266-bb66-6dd48bbeb17c_medium.jpg?v=1715804842)
HD-3408 | Rectangular 34 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3408
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![iO HVAC Controls HD-3216 Rectangular 32 x 16 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_c3680be1-5f97-450e-a3b9-70dbca282197_medium.jpg?v=1715804935)
HD-3216 | Rectangular 32 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3216
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![iO HVAC Controls HD-3214 Rectangular 32 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_14790b92-b03e-4bd8-9f38-61f59faae8cb_medium.jpg?v=1715804902)
HD-3214 | Rectangular 32 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3214
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![iO HVAC Controls HD-3212-BM Rectangular 32 x 12 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_f4c339bf-f908-4643-9f0b-b99052ed33a8_medium.jpg?v=1715804907)
HD-3212-BM | Rectangular 32 x 12 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3212-BM
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![iO HVAC Controls HD-3212 Rectangular 32 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_921089a9-e4fd-4300-a08b-824d3233f8d0_medium.jpg?v=1715804874)
HD-3212 | Rectangular 32 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3212
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![iO HVAC Controls HD-3210 Rectangular 32 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_288a3d7c-f584-4033-a9d5-e2160fed0ee7_medium.jpg?v=1715804885)
HD-3210 | Rectangular 32 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3210
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![iO HVAC Controls HD-3208-BM Rectangular 32 x 08 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_5e225e23-a93a-4a36-88ad-79033d7ec6ef_medium.jpg?v=1715804897)
HD-3208-BM | Rectangular 32 x 08 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3208-BM
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![iO HVAC Controls HD-3208 Rectangular 32 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_4423feee-0fef-4790-bb30-c879fe43eead_medium.jpg?v=1715804931)
HD-3208 | Rectangular 32 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3208
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![iO HVAC Controls HD-3026 Rectangular 30 x 26 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_c64145da-027b-4eb6-8726-f790006eabb7_medium.jpg?v=1715804931)
HD-3026 | Rectangular 30 x 26 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3026
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![iO HVAC Controls HD-3024 Rectangular 30 x 24 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_6ff0f000-9aeb-466c-b9ae-c90e6ac2d8ce_medium.jpg?v=1715804898)
HD-3024 | Rectangular 30 x 24 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3024
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![iO HVAC Controls HD-3022 Rectangular 30 x 22 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_75e61d2c-7df3-48ce-9907-816640f04b43_medium.jpg?v=1715804899)
HD-3022 | Rectangular 30 x 22 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3022
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![iO HVAC Controls HD-3020-BM Rectangular 30 x 20 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_d36f8ae2-598b-4dd6-b661-77b30fb1d8fe_medium.jpg?v=1715804893)
HD-3020-BM | Rectangular 30 x 20 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3020-BM
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![iO HVAC Controls HD-3020 Rectangular 30 x 20 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_a8cbcc35-2ef7-4d92-948f-608ff42009a3_medium.jpg?v=1715804953)
HD-3020 | Rectangular 30 x 20 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3020
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![iO HVAC Controls HD-3014-BM Rectangular 30 x 14 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_17c434f8-e30a-4e4d-9cbb-963752d1d6e2_medium.jpg?v=1715804949)
HD-3014-BM | Rectangular 30 x 14 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3014-BM
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![iO HVAC Controls HD-3014 Rectangular 30 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_a86f90e5-c2b0-4ef5-bdc4-8df25dd5d709_medium.jpg?v=1715804958)
HD-3014 | Rectangular 30 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3014
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![iO HVAC Controls HD-3012-BM Rectangular 30 x 12 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_b944f94a-c097-4797-9533-46e651d30b2c_medium.jpg?v=1715804870)
HD-3012-BM | Rectangular 30 x 12 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3012-BM
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![iO HVAC Controls HD-3012 Rectangular 30 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_4cc1c821-85fe-47a8-85cb-c2c567531f0b_medium.jpg?v=1715804953)
HD-3012 | Rectangular 30 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3012
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Brand: Saginaw
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BM000 | B series low voltage Actuators | 50 in.lb | 24V | ON/OFF | Floating | Modulating | Neptronic
Brand: Neptronic
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147-2000 | Positioning Relay, Pneumatic, Adj Start Point and Span, Rapid Response | Siemens
Brand: Siemens
SKU: 147-2000