Zone dampers Rectangular dampers Type
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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_1acff74b-be0b-43d0-9e42-2336583dc4f0_medium.jpg?v=1719992291)
HD-3012 | Rectangular 30 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3012
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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_c43c0aba-6983-4ad6-8b23-030ed4dbe125_medium.jpg?v=1719992291)
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-3012-PO 30 x 12 Two-Position Zone Damper - Powered Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_bf76650f-3595-4292-a65c-28d607d89d9b_medium.jpg?v=1719992286)
HD-3012-PO | 30 x 12 Two-Position Zone Damper - Powered Open | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3012-PO
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![iO HVAC Controls HD-1812 Rectangular 18 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_3219bf4d-c215-48e3-ba1b-23c81fbbdd9f_medium.jpg?v=1719992286)
HD-1812 | Rectangular 18 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-1812
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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_f297de25-eeb7-4b41-82b7-572985801a89_medium.jpg?v=1719992285)
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-1812-BM Rectangular 18 x 12 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_95ed4ac3-413e-4a7b-9537-0fbe48cc6dd1_medium.jpg?v=1719992281)
HD-1812-BM | Rectangular 18 x 12 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-1812-BM
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![iO HVAC Controls HD-2612 Rectangular 26 x 12 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_00a112c6-15af-4b5a-bcc8-125a2d354b40_medium.jpg?v=1719992281)
HD-2612 | Rectangular 26 x 12 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2612
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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_b8b8e1e7-9cc3-4842-b3b0-9221263aa308_medium.jpg?v=1719992281)
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-1808 Rectangular 18 x 08 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_f9c89336-f88a-4a34-be7e-99c6f7a87148_medium.jpg?v=1719992281)
HD-1808 | Rectangular 18 x 08 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-1808
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![iO HVAC Controls HD-1814-BM Rectangular 18 x 14 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_a4414f5a-ddb6-4eba-844b-74b6b4967546_medium.jpg?v=1719992280)
HD-1814-BM | Rectangular 18 x 14 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-1814-BM
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![iO HVAC Controls HD-2410 Rectangular 24 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_f4f65e7b-be5c-4ede-8601-b5dc080321e8_medium.jpg?v=1719992280)
HD-2410 | Rectangular 24 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2410
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![iO HVAC Controls HD-2614-BM Rectangular 26 x 14 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_39fd66bd-1881-4dbc-9f91-25deae98e4dc_medium.jpg?v=1719992281)
HD-2614-BM | Rectangular 26 x 14 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2614-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_01f332e7-ad9c-48bf-99c8-124b31fbf4eb_medium.jpg?v=1719992280)
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 D-Z1-1610-BM 16 x 10 Two-Position Zone One Damper Assembly - Bottom Mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-DZ-XXXX_web_2bd24efb-7238-4307-af53-04229968cc1e_medium.jpg?v=1719992276)
D-Z1-1610-BM | 16 x 10 Two-Position Zone One Damper Assembly - Bottom Mount | iO HVAC Controls
Brand: iO HVAC Controls
SKU: D-Z1-1610-BM
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![iO HVAC Controls D-Z1-2212-BM 22 x 12 Two-Position Zone One Damper Assembly - Bottom Mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-DZ-XXXX_web_72ee1161-2071-42e8-9428-3a28a52047ca_medium.jpg?v=1719992276)
D-Z1-2212-BM | 22 x 12 Two-Position Zone One Damper Assembly - Bottom Mount | iO HVAC Controls
Brand: iO HVAC Controls
SKU: D-Z1-2212-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_49e66e94-32f8-46f3-9aa0-df3d949765ad_medium.jpg?v=1719992281)
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-2618 Rectangular 26 x 18 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_e5ea86f2-eb92-4691-878d-5272f379cbf4_medium.jpg?v=1719992276)
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-2414 Rectangular 24 x 14 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_216a418e-f8fe-4aab-996e-b1b8e3839313_medium.jpg?v=1719992275)
HD-2414 | Rectangular 24 x 14 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2414
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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_919e42a4-bb59-494d-a5b2-dd1e0d7c3b94_medium.jpg?v=1719992271)
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 D-Z1-2420-BM 24 x 20 Two-Position Zone One Damper Assembly - Bottom Mount | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-DZ-XXXX_web_f3936a2f-c31b-47aa-8bcc-d728fecf14a4_medium.jpg?v=1719992271)
D-Z1-2420-BM | 24 x 20 Two-Position Zone One Damper Assembly - Bottom Mount | iO HVAC Controls
Brand: iO HVAC Controls
SKU: D-Z1-2420-BM
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![iO HVAC Controls HD-2016 Rectangular 20 x 16 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_1c14f87f-5dfd-4b49-a397-ae09c6006063_medium.jpg?v=1719992271)
HD-2016 | Rectangular 20 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-2016
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![iO HVAC Controls HD-1006 Rectangular 10 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_0dd3553f-3495-46e9-adf8-08e8602d6738_medium.jpg?v=1719992270)
HD-1006 | Rectangular 10 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-1006
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![iO HVAC Controls HD-1206 Rectangular 12 x 06 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-HDXXXX_47db5a0c-5fe7-41a4-b846-1db60ca066ff_medium.jpg?v=1719992271)
HD-1206 | Rectangular 12 x 06 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-1206
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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_53833316-b729-43a7-9828-2e0c6278a03a_medium.jpg?v=1719992271)
HD-3216 | Rectangular 32 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: HD-3216
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