zone dampers
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![iO HVAC Controls HD-NA-2222 22 x 22 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_14d31239-7781-4560-91e9-bf0e0ac5f8d0_medium.png?v=1719992302)
HD-NA-2222 | 22 x 22 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-2222
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![iO HVAC Controls HD-NA-0808 08 x 08 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_8a4e197b-7554-439c-8c8f-23aa1b68b227_medium.png?v=1719992302)
HD-NA-0808 | 08 x 08 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-0808
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![iO HVAC Controls HD-NA-1412 14 x 12 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_8366aec6-a790-4347-bb35-0e80c0654b57_medium.png?v=1719992306)
HD-NA-1412 | 14 x 12 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1412
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![iO HVAC Controls HD-NA-1814 18 x 14 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_9ae270c7-14c8-4cf6-aa17-a67324354b14_medium.png?v=1719992306)
HD-NA-1814 | 18 x 14 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1814
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![iO HVAC Controls HD-NA-1608 16 x 08 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_682bb2dc-f772-42c3-99dd-9852ff955388_medium.png?v=1719992306)
HD-NA-1608 | 16 x 08 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1608
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![iO HVAC Controls HD-3620 Rectangular 36 x 20 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_3484cebd-e6d7-4c25-a7e5-b372fb499059_medium.jpg?v=1719992301)
HD-3620 | Rectangular 36 x 20 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3620
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![iO HVAC Controls HD-NA-1610 16 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_8943e479-c6e3-4636-b92e-557c4181fd9e_medium.png?v=1719992301)
HD-NA-1610 | 16 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1610
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![iO HVAC Controls HD-NA-1818 18 x 18 Two-Position Zone Damper -No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_ffba1866-4ccf-40ce-ad8d-1aac492eb911_medium.png?v=1719992302)
HD-NA-1818 | 18 x 18 Two-Position Zone Damper -No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1818
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![iO HVAC Controls HD-NA-1206 12 x 06 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_0767d339-c84e-4cb8-b386-3bae3a4c34cb_medium.png?v=1719992302)
HD-NA-1206 | 12 x 06 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1206
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![iO HVAC Controls HD-BM-NA-3610 36 X 10 Two-Position Zone Damper Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_87de108f-9b25-4be5-b57d-be7be30c0074_medium.png?v=1719992301)
HD-BM-NA-3610 | 36 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-3610
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![iO HVAC Controls HD-2410-PO 24 x 10 Heavy-Duty Zone Damper - Powered Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_830dd8d9-f88e-441e-b0a7-21faa245e212_medium.jpg?v=1719992301)
HD-2410-PO | 24 x 10 Heavy-Duty Zone Damper - Powered Open | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2410-PO
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![iO HVAC Controls HD-NA-1010 10 x 10 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_e78e7286-2de3-4ad6-93f6-92b41e0f8ce7_medium.png?v=1719992302)
HD-NA-1010 | 10 x 10 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1010
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![iO HVAC Controls HD-NA-1008 10 x 08 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_53ec2a6a-d1d0-4714-bdc2-101a3ddbb361_medium.png?v=1719992297)
HD-NA-1008 | 10 x 08 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-1008
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![iO HVAC Controls HD-BM-NA-3608 36 x 08 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_3e9d3469-3587-45e2-aa3e-f0df17a7e151_medium.png?v=1719992301)
HD-BM-NA-3608 | 36 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-3608
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![iO HVAC Controls HD-2010 Rectangular 20 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_07075730-ebb6-40fc-8650-54ac63565285_medium.jpg?v=1719992301)
HD-2010 | Rectangular 20 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2010
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![iO HVAC Controls HD-2606-BM Rectangular 26 x 06 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_83adf1ca-944e-491b-99d6-19ed4647dc89_medium.jpg?v=1719992297)
HD-2606-BM | Rectangular 26 x 06 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2606-BM
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![iO HVAC Controls HD-NA-0806 08 x 06 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_4f86f862-f4e3-4e8a-90d5-53dfe5bbea23_medium.png?v=1719992297)
HD-NA-0806 | 08 x 06 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-0806
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![iO HVAC Controls HD-3022-PO 30 x 22 Rectangular Two-Position Zone Damper - Powered Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_b406870a-0150-4977-8aeb-0a183b189373_medium.jpg?v=1719992297)
HD-3022-PO | 30 x 22 Rectangular Two-Position Zone Damper - Powered Open | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3022-PO
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![iO HVAC Controls HD-NA-0606 06 x 06 Two-Position Zone Damper-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_f322da3b-57df-4e10-8f2c-36febbdce625_medium.png?v=1719992301)
HD-NA-0606 | 06 x 06 Two-Position Zone Damper-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-NA-0606
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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/files/HD-NA-XXXX_47ca77e6-2880-42c7-9c30-5c8d8baf6d57_medium.png?v=1719992296)
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-3612 36 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_ced67d9c-70ab-4555-991a-573a4890f79c_medium.png?v=1719992301)
HD-BM-NA-3612 | 36 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-3612
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![iO HVAC Controls HD-BM-NA-3624 36 x 24 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_58fc2cee-f5ad-483b-b0fd-3f3f09c4d652_medium.png?v=1719992296)
HD-BM-NA-3624 | 36 x 24 Two-Position Zone Damper - Bottom Mount-No Actuator, 5 / 8-1 / 2 Shaft | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-BM-NA-3624
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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/files/HD-NA-XXXX_c6b9f316-c869-4932-95ce-ffbd5ea4ad8f_medium.png?v=1719992297)
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-3012 30 x 12 Two-Position Zone Damper - Bottom Mount-No Actuator, 5/8-1/2 Shaft | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/HD-NA-XXXX_41d20649-4693-4d5c-a266-b0c02e4f5aa0_medium.png?v=1719992296)
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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