Dampers Rectangular Shape
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![EWC Controls 18X6 ND Rectangular Damper | 18X6 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_07eef9d7-7a89-4018-a2d9-dff98539686d_medium.png?v=1720000491)
18X6 ND | Rectangular Damper | 18X6 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X6 ND
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![EWC Controls 20X12 ND-HD 20X12 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_8b5f61ce-b652-43d9-8f22-19c1c5955960_medium.png?v=1720000487)
20X12 ND-HD | 20X12 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X12 ND-HD
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![EWC Controls 18X12 ND Rectangular Damper | 18X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_b10be9eb-e587-42c1-89ef-8cd56234a320_medium.png?v=1720000463)
18X12 ND | Rectangular Damper | 18X12 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X12 ND
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![EWC Controls 16X8 ND-RSD NC Rectangular Damper | 16X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_13f33fc2-e658-424a-89d5-fef457c064aa_medium.png?v=1720094302)
16X8 ND-RSD NC | Rectangular Damper | 16X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 16X8 ND-RSD NC
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![EWC Controls 16X10 ND Rectangular Damper | 16X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_d10dad34-376c-4afc-8b73-cf88b02e037a_medium.png?v=1720000432)
16X10 ND | Rectangular Damper | 16X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X10 ND
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![EWC Controls 12X12 ND-HD 12X12 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_fa1a31ad-8623-4b14-96c8-d99f9230e349_medium.png?v=1720000413)
12X12 ND-HD | 12X12 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X12 ND-HD
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![EWC Controls 10X18 ND Rectangular Damper | 10X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_f03ab504-efdd-41ca-bcbe-f7bd4164e829_medium.png?v=1720000393)
10X18 ND | Rectangular Damper | 10X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 10X18 ND
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![EWC Controls 10X14 ND Rectangular Damper | 10X14 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_4bcccfec-8ca9-4519-b7a6-939a2a1379ed_medium.png?v=1720000388)
10X14 ND | Rectangular Damper | 10X14 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 10X14 ND
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![EWC Controls 10X10 ND Rectangular Damper | 10X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a3834f14-0152-4e00-b99e-7cb389827bbf_medium.png?v=1720094293)
10X10 ND | Rectangular Damper | 10X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 10X10 ND
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![iO HVAC Controls MBD-1616 Manual Rectangular 16 x 16 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_94b94bcc-7ea4-4deb-ac00-9366a639bf4a_medium.jpg?v=1719992352)
MBD-1616 | Manual Rectangular 16 x 16 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1616
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![iO HVAC Controls MZR-1004-W-PC Motorized 10 x 04 Zone Register - White | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-MZR_web_f6596a54-f0fd-4cf2-a59c-ce8f00c694ad_medium.jpg?v=1719992508)
MZR-1004-W-PC | Motorized 10 x 04 Zone Register - White | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MZR-1004-W-PC
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![iO HVAC Controls MD-1408-BM MD Series 14x08 (3) Wire Damper PO/PC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/iO-MDXXXX_3e2f5608-6d5a-46f0-b15f-2ff98e43e2a5_medium.jpg?v=1719992460)
MD-1408-BM | MD Series 14x08 (3) Wire Damper PO / PC | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MD-1408-BM
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![iO HVAC Controls MBD-1608-BM Manual Rectangular 16 x 08 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_0cbdf1fe-a1da-44b6-8c82-834dbabf6809_medium.jpg?v=1719992363)
MBD-1608-BM | Manual Rectangular 16 x 08 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1608-BM
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![iO HVAC Controls MBD-1408-BM Manual Rectangular 14 x 08 Zone Damper-BM | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_ac08b52d-4a93-46dc-b6b0-1f3ca0f1bc85_medium.jpg?v=1719992362)
MBD-1408-BM | Manual Rectangular 14 x 08 Zone Damper-BM | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1408-BM
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![iO HVAC Controls MBD-1210 Manual Rectangular 12 x 10 Zone Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/balancing_damper_rect_57d8903a-c5e1-4bb9-b959-9521eede71b6_medium.jpg?v=1719992358)
MBD-1210 | Manual Rectangular 12 x 10 Zone Damper | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-1210
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![iO HVAC Controls MBD-04 iO HVAC Controls Manual Balancing Damper 4 Round with locking quad | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/MBD-04_medium.jpg?v=1719992331)
MBD-04 | iO HVAC Controls Manual Balancing Damper 4 Round with locking quad | iO HVAC Controls
Brand: iO HVAC Controls
SKU: MBD-04
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![EWC Controls 30X10 ND Rectangular Damper | 30X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_173b6a79-1839-49d9-8ea2-3d06f77a79fd_medium.png?v=1720000507)
30X10 ND | Rectangular Damper | 30X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X10 ND
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![EWC Controls 18X24 ND Rectangular Damper | 18X24 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_b50e52e6-550f-4d12-8a85-3d2e97857b35_medium.png?v=1720000473)
18X24 ND | Rectangular Damper | 18X24 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 18X24 ND
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![EWC Controls 16X12 ND Rectangular Damper | 16X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_3412851a-5907-42e1-a651-214c32c42b4f_medium.png?v=1720000473)
16X12 ND | Rectangular Damper | 16X12 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X12 ND
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![EWC Controls 20X20 ND Rectangular Damper | 20X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_b0aa5754-0865-4d50-be80-9d68ea18ddb2_medium.png?v=1720000463)
20X20 ND | Rectangular Damper | 20X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X20 ND
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![EWC Controls 22X10 ND Rectangular Damper | 22X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_3302c4f1-5021-4016-95f6-3a81a00444a6_medium.png?v=1720094302)
22X10 ND | Rectangular Damper | 22X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 22X10 ND
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![EWC Controls 18X18 ND-RSD NC Rectangular Damper | 18X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_6bd6fbc2-ef03-4e3c-8323-ba587054261a_medium.png?v=1720000447)
18X18 ND-RSD NC | Rectangular Damper | 18X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X18 ND-RSD NC
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![EWC Controls 12X24 ND-RSD NC Rectangular Damper | 12X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_57d78369-e521-47f6-b912-d9f4c52dd2af_medium.png?v=1720000437)
12X24 ND-RSD NC | Rectangular Damper | 12X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 12X24 ND-RSD NC
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![EWC Controls 12X8 ND-RSD NC Rectangular Damper | 12X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_fc0794b7-c02d-4fe4-9e8a-0a4aec6e679e_medium.png?v=1720000418)
12X8 ND-RSD NC | Rectangular Damper | 12X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 12X8 ND-RSD NC
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