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About product and suppliers:
        Alibaba.com offers 200 backdraft damper products. About 47% of these are hvac systems & parts, 18% are other fabrication services, and 1% are ventilation fan parts. 

A wide variety of backdraft damper options are available to you, such as hvac systems, ventilation, and air conditioning. 

There are 199 backdraft damper suppliers, mainly located in Asia. The top supplying countries or regions are China, Pakistan, and Philippines, which supply 96%, 1%, and 1% of backdraft damper respectively. 

Backdraft damper products are most popular in Malaysia, Canada, and Italy.