Ewc Rectangular Shape
We offer over 70 EWC HVAC products, including Bypass Dampers, Damper Controls & Accessories, Rectangular Dampers, Round Dampers, and Zoning Panels.
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![EWC Controls 8X18 ND Rectangular Damper | 8X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_6ce8b056-14ed-4b21-9f2f-249688c38ab6_medium.png?v=1720000551)
8X18 ND | Rectangular Damper | 8X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8X18 ND
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![EWC Controls 20X18 ND Rectangular Damper | 20X18 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_8825db3d-b0aa-47a3-9182-a937d3bba697_medium.png?v=1720000512)
20X18 ND | Rectangular Damper | 20X18 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 20X18 ND
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![EWC Controls 16X16 ND Rectangular Damper | 16X16 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_c74cdc09-2468-411b-9854-b81c2cc31c92_medium.png?v=1720000463)
16X16 ND | Rectangular Damper | 16X16 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 16X16 ND
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![EWC Controls 14X10 ND Rectangular Damper | 14X10 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_75a342f7-7c2f-4878-87ba-4a85261bfd06_medium.png?v=1720000437)
14X10 ND | Rectangular Damper | 14X10 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X10 ND
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![EWC Controls 14X6 ND Rectangular Damper | 14X6 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_93ec8d93-265a-49e0-b602-18daeab7fea0_medium.png?v=1720000414)
14X6 ND | Rectangular Damper | 14X6 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 14X6 ND
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![EWC Controls 10x6 ND Rectangular Damper | 10X6 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_c1fe8198-fb1d-4c37-829f-a8ce02087f0d_medium.png?v=1720000408)
10x6 ND | Rectangular Damper | 10X6 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 10x6 ND
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![EWC Controls 8X8 ND Rectangular Damper | 8X8 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_d80bcae4-5f51-4337-b158-56413f571660_medium.png?v=1720094312)
8X8 ND | Rectangular Damper | 8X8 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8X8 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 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 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 8X8 ND-RSD NC Rectangular Damper | 8X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_16bc8036-9ba8-4768-ae2d-7a8dc61ac260_medium.png?v=1720000556)
8X8 ND-RSD NC | Rectangular Damper | 8X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 8X8 ND-RSD NC
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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 8X20 ND Rectangular Damper | 8X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2b71ce1b-7e89-4525-98b1-0e1e5d1e4a15_medium.png?v=1720000551)
8X20 ND | Rectangular Damper | 8X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8X20 ND
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![EWC Controls 8X12 ND Rectangular Damper | 8X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_a2eca7da-4766-4270-b5b3-34e28f527e53_medium.png?v=1720000546)
8X12 ND | Rectangular Damper | 8X12 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 8X12 ND
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![EWC Controls 30X20 ND Rectangular Damper | 30X20 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_d4956aa6-39e5-489a-b425-286c00d20946_medium.png?v=1720000541)
30X20 ND | Rectangular Damper | 30X20 ND MOTORIZED DAMPER | EWC Controls
Brand: EWC Controls
SKU: 30X20 ND
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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 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 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 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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![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 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 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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![EWC Controls 10X8 ND-RSD NC Rectangular Damper | 10X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_676a0ad5-93ad-4aa0-99cf-d32fc3e2244d_medium.png?v=1720000398)
10X8 ND-RSD NC | Rectangular Damper | 10X8 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls
Brand: EWC Controls
SKU: 10X8 ND-RSD NC
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