The flange is used to connect the Can-Filter¨ to the ducting or Can-Fan¨; this is for airflow out of the ventilated area. These spun steel flanges come with a foam rubber seal and 6 hex drive self-tapping screws forming a perfect seal with Can-Filter¨ products. Flanges range in size from 4 in to 20 in depending on your specific needs.
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