Rectangular motorized dampers Rectangular dampers Type
Over 1,500 rectangular motorized duct dampers by Braeburn, Honeywell, iO HVAC Controls, and EWC Controls in our stock are available to purchase.
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![EWC Controls 30X6 ND-RSD NC Rectangular Damper | 30X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_4ab8d7df-178d-410b-8b57-9aa92413cf6c_medium.png?v=1713902451)
30X6 ND-RSD NC | Rectangular Damper | 30X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 30X6 ND-RSD NC
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![EWC Controls 28X28 ND-RSD NC Rectangular Damper | 28X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_76adf235-38bb-4500-a168-e241c59ab582_medium.png?v=1713902447)
28X28 ND-RSD NC | Rectangular Damper | 28X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X28 ND-RSD NC
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![EWC Controls 28X26 ND-RSD NC Rectangular Damper | 28X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_42b5aa15-453e-4746-8ef7-f2e7c563f9ac_medium.png?v=1713902480)
28X26 ND-RSD NC | Rectangular Damper | 28X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X26 ND-RSD NC
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![EWC Controls 28X24 ND-RSD NC Rectangular Damper | 28X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_3da811d0-8f3f-4fa9-8f30-400f210fe046_medium.png?v=1713902447)
28X24 ND-RSD NC | Rectangular Damper | 28X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X24 ND-RSD NC
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![EWC Controls 28X22 ND-RSD NC Rectangular Damper | 28X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f03a1580-b229-4044-842d-c6342575a554_medium.png?v=1713902528)
28X22 ND-RSD NC | Rectangular Damper | 28X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X22 ND-RSD NC
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![EWC Controls 28X20 ND-RSD NC Rectangular Damper | 28X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_540784f4-6f3b-4443-b482-6e00768e372e_medium.png?v=1713902470)
28X20 ND-RSD NC | Rectangular Damper | 28X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X20 ND-RSD NC
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![EWC Controls 28X18 ND-RSD NC Rectangular Damper | 28X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_5cfdc94f-0383-4513-9a53-d22e8c009c62_medium.png?v=1713902433)
28X18 ND-RSD NC | Rectangular Damper | 28X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X18 ND-RSD NC
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![EWC Controls 28X16 ND-RSD NC Rectangular Damper | 28X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_d0bc3419-872d-43b0-8d89-e4f1201b9a74_medium.png?v=1713902495)
28X16 ND-RSD NC | Rectangular Damper | 28X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X16 ND-RSD NC
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![EWC Controls 28X14 ND-RSD NC Rectangular Damper | 28X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_29132ba3-179e-4d57-bf25-e765dee404d1_medium.png?v=1713902437)
28X14 ND-RSD NC | Rectangular Damper | 28X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X14 ND-RSD NC
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![EWC Controls 28X10 ND-RSD NC Rectangular Damper | 28X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9a3c8ae9-8f57-420f-9c5e-5d61a92725cf_medium.png?v=1713902466)
28X10 ND-RSD NC | Rectangular Damper | 28X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X10 ND-RSD NC
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![EWC Controls 28X8 ND-RSD NC Rectangular Damper | 28X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_8474a067-0ae9-47d1-890a-6771f255fb31_medium.png?v=1713902450)
28X8 ND-RSD NC | Rectangular Damper | 28X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X8 ND-RSD NC
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![EWC Controls 28X6 ND-RSD NC Rectangular Damper | 28X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_98ca6d0c-de90-4fbb-ba27-c114fa317f32_medium.png?v=1713902457)
28X6 ND-RSD NC | Rectangular Damper | 28X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 28X6 ND-RSD NC
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![EWC Controls 26X26 ND-RSD NC Rectangular Damper | 26X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_65ffa000-2c42-4fca-85a2-e56ac83e1671_medium.png?v=1713902470)
26X26 ND-RSD NC | Rectangular Damper | 26X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X26 ND-RSD NC
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![EWC Controls 26X24 ND-RSD NC Rectangular Damper | 26X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_3155af93-6588-457f-9c08-0d402c9a318f_medium.png?v=1713902461)
26X24 ND-RSD NC | Rectangular Damper | 26X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X24 ND-RSD NC
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![EWC Controls 26X22 ND-RSD NC Rectangular Damper | 26X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_c0634ca4-2d58-440f-a7a5-07eebff417db_medium.png?v=1713902481)
26X22 ND-RSD NC | Rectangular Damper | 26X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X22 ND-RSD NC
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![EWC Controls 26X20 ND-RSD NC Rectangular Damper | 26X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2f6a41fd-8d0a-4577-a4da-befe70b1c2ae_medium.png?v=1713902457)
26X20 ND-RSD NC | Rectangular Damper | 26X20 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X20 ND-RSD NC
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![EWC Controls 26X18 ND-RSD NC Rectangular Damper | 26X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ccf3e4d5-bcba-4c4d-a035-44683cf1d100_medium.png?v=1713902456)
26X18 ND-RSD NC | Rectangular Damper | 26X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X18 ND-RSD NC
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![EWC Controls 26X16 ND-RSD NC Rectangular Damper | 26X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_ea810d2b-b55d-464e-ab72-0f000395468d_medium.png?v=1713902437)
26X16 ND-RSD NC | Rectangular Damper | 26X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X16 ND-RSD NC
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![EWC Controls 26X14 ND-RSD NC Rectangular Damper | 26X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a1a31db6-340f-4a93-ba29-3860edea3147_medium.png?v=1713902456)
26X14 ND-RSD NC | Rectangular Damper | 26X14 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X14 ND-RSD NC
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![EWC Controls 26X12 ND-RSD NC Rectangular Damper | 26X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_dcb964cb-3d7f-4892-a26a-b959264e0af5_medium.png?v=1713902418)
26X12 ND-RSD NC | Rectangular Damper | 26X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X12 ND-RSD NC
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![EWC Controls 26X10 ND-RSD NC Rectangular Damper | 26X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_961ebe31-cd01-4387-97b4-656f1ee5db18_medium.png?v=1713902457)
26X10 ND-RSD NC | Rectangular Damper | 26X10 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X10 ND-RSD NC
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![EWC Controls 26X8 ND-RSD NC Rectangular Damper | 26X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_e7f84f83-ec8b-45ff-bd7a-7f5c695d3d35_medium.png?v=1713902448)
26X8 ND-RSD NC | Rectangular Damper | 26X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X8 ND-RSD NC
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![EWC Controls 26X6 ND-RSD NC Rectangular Damper | 26X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f16b0eb0-4571-400b-9c51-3ca2b8e6b4e3_medium.png?v=1713902461)
26X6 ND-RSD NC | Rectangular Damper | 26X6 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 26X6 ND-RSD NC
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![EWC Controls 24X22 ND-RSD NC Rectangular Damper | 24X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6f57abf1-b4a8-4583-ae4c-cb3f60d9c6f7_medium.png?v=1713902532)
24X22 ND-RSD NC | Rectangular Damper | 24X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 24X22 ND-RSD NC
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