HVAC uses of flexible air duct have grown exponentially over the last two decades, all over North America. Contractors and installers say they like it, and some find it indispensable. It has changed ...
A new, bend-and-stay type of flexible plastic duct features an interlocking construction. According to the manufacturer, Pliaduct® is a 100 percent rigid, self-supporting PVC duct with a ribbon-lock ...
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