Over the years, I have tried a few of the common options out there for ductwork including home store HVAC, sewer & drain PVC, and economy snap-lock pipe. Below on the left you can see my old HVAC ductwork system in my first shop in Temecula, CA. I was running a Penn State Tempest...
Factory Price Self-Holding Installing HVAC Ductwork Glass Wool Aluminum Foils Duct, Find Details and Price about Flexible Duct Flex Duct from Factory Price Self-Holding Installing HVAC Ductwork Glass Wool Aluminum Foils Duct - Dongguan Xinye Import&Expor