Dampers (hidden without zone panels) EWC Controls
Zone dampers for HVAC systems without zone control panels. Order Individual 24V motorized dampers for creating HVAC zones today at Blackhawk Supply.
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![EWC Controls 7 URD-SRE120 N.C. 7 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_076914a0-0603-4789-ad3e-bb5c79da3ee8_medium.gif?v=1713902527)
7 URD-SRE120 N.C. | 7 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 7 URD-SRE120 N.C.
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![EWC Controls 5 URD-SRE120 N.C. 5 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_b59bf5c6-392a-49d0-8402-2d92eabe628c_medium.gif?v=1713902490)
5 URD-SRE120 N.C. | 5 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 5 URD-SRE120 N.C.
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![EWC Controls 4 URD-SRE120 N.C. 4 Inch 120V Round Motorized Spring Return Damper Normally Closed | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_d13e9463-bd37-43ac-8970-60221ea9cf75_medium.gif?v=1713902452)
4 URD-SRE120 N.C. | 4 Inch 120V Round Motorized Spring Return Damper Normally Closed | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 4 URD-SRE120 N.C.
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![EWC Controls 10 URD-SRE120 N.O. 10 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_209ea005-1b16-42a9-8dfa-1c28fb794f74_medium.gif?v=1713902272)
10 URD-SRE120 N.O. | 10 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 10 URD-SRE120 N.O.
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![EWC Controls 9 URD-SRE120 N.O. 9 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_e597fae0-139c-4a62-996c-1875a25cf942_medium.gif?v=1713902507)
9 URD-SRE120 N.O. | 9 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 9 URD-SRE120 N.O.
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![EWC Controls 8 URD-SRE120 N.O. 8 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_8a090870-284c-4309-b240-e2b5e8ef1374_medium.gif?v=1713902519)
8 URD-SRE120 N.O. | 8 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 8 URD-SRE120 N.O.
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![EWC Controls 7 URD-SRE120 N.O. 7 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_b3b790ee-a40d-4b5c-bab9-a375ce0c857f_medium.gif?v=1713902494)
7 URD-SRE120 N.O. | 7 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 7 URD-SRE120 N.O.
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![EWC Controls 4 URD-SRE120 N.O. 4 Inch 120V Round Motorized Spring Return Damper Normally Open | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sr120small-proof_0d9819ba-fb66-48ba-a63a-cedb944b9578_medium.gif?v=1713902480)
4 URD-SRE120 N.O. | 4 Inch 120V Round Motorized Spring Return Damper Normally Open | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 4 URD-SRE120 N.O.
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![EWC Controls 12X10 ND-HD 12X10 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_345685e0-9c12-423c-bcb7-83cb6fb1f061_medium.png?v=1713902311)
12X10 ND-HD | 12X10 ND-HD HAND DAMPER | EWC Controls
Brand: EWC Controls
SKU: 12X10 ND-HD
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![EWC Controls 20X12 EBD 20X12 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_adc89ec9-164c-4d04-af10-9963000a1ec7_medium.gif?v=1713902444)
20X12 EBD | 20X12 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X12 EBD
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![EWC Controls 20X10 EBD 20X10 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_d9f5bdbd-2632-4f24-85cb-b56f00f23d2e_medium.gif?v=1713902437)
20X10 EBD | 20X10 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X10 EBD
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![EWC Controls 20X8 EBD 20X8 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_61e45fc8-569e-4c6c-bb05-e2b800fb5708_medium.gif?v=1713902427)
20X8 EBD | 20X8 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 20X8 EBD
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![EWC Controls 12X12 EBD 12X12 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_72a600f7-a7af-4b95-a70b-8f5127a836f9_medium.gif?v=1713902361)
12X12 EBD | 12X12 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X12 EBD
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![EWC Controls 12X10 EBD 12X10 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_medium.gif?v=1713902311)
12X10 EBD | 12X10 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X10 EBD
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![EWC Controls 12X8 EBD 12X8 Rectangular Electronic Static Pressure Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ebd_12762419-ef84-4df9-8b24-4514aabc76ad_medium.gif?v=1713902330)
12X8 EBD | 12X8 Rectangular Electronic Static Pressure Bypass Damper | EWC Controls
Brand: EWC Controls
SKU: 12X8 EBD
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![EWC Controls 20X22 ND-RSD NC Rectangular Damper | 20X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_73fd0a0f-b0b7-4042-8bb5-a883569e77d0_medium.png?v=1713902432)
20X22 ND-RSD NC | Rectangular Damper | 20X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 20X22 ND-RSD NC
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![EWC Controls 18X26 ND-RSD NC Rectangular Damper | 18X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_a2ef9221-0ba2-4672-9536-2a97c6d5b7d8_medium.png?v=1713902406)
18X26 ND-RSD NC | Rectangular Damper | 18X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X26 ND-RSD NC
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![EWC Controls 18X22 ND-RSD NC Rectangular Damper | 18X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_2a5581b3-fd4d-4702-b975-1160ade77ca3_medium.png?v=1713902423)
18X22 ND-RSD NC | Rectangular Damper | 18X22 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 18X22 ND-RSD NC
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![EWC Controls 16X30 ND-RSD NC Rectangular Damper | 16X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_17483d73-fd9c-4a8a-92ff-59c5e2ac4dff_medium.png?v=1713902412)
16X30 ND-RSD NC | Rectangular Damper | 16X30 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X30 ND-RSD NC
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![EWC Controls 16X26 ND-RSD NC Rectangular Damper | 16X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_93986b3d-11f8-4c89-b029-c3f887d4ab1a_medium.png?v=1713902385)
16X26 ND-RSD NC | Rectangular Damper | 16X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X26 ND-RSD NC
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![EWC Controls 16X24 ND-RSD NC Rectangular Damper | 16X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_63707c4c-2528-4178-98b5-67edcfe86fde_medium.png?v=1713902375)
16X24 ND-RSD NC | Rectangular Damper | 16X24 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X24 ND-RSD NC
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![EWC Controls 16X18 ND-RSD NC Rectangular Damper | 16X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_1d1d63cc-35c7-43f7-b5d8-da2ead777cb7_medium.png?v=1713902390)
16X18 ND-RSD NC | Rectangular Damper | 16X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 16X18 ND-RSD NC
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![EWC Controls 14X28 ND-RSD NC Rectangular Damper | 14X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_9e28da5c-9dee-426f-8d46-2030923faabf_medium.png?v=1713902377)
14X28 ND-RSD NC | Rectangular Damper | 14X28 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X28 ND-RSD NC
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![EWC Controls 14X26 ND-RSD NC Rectangular Damper | 14X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_0a580b31-89d1-4260-9a60-f4cc9a30de34_medium.png?v=1713902357)
14X26 ND-RSD NC | Rectangular Damper | 14X26 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | EWC Controls (OBSOLETE)
Brand: EWC Controls
SKU: 14X26 ND-RSD NC
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