Flat Oval Spiral Duct Watch the beneath video to begin to see the installation of oval duct and fittings. Detect that the reducer being used is undersized on its collar letting the oval duct to slip above the collar. They are really utilizing Unistrut with threaded rods as hangers for https://ovalconduit45666.blog2news.com/37219425/round-conduit-no-further-a-mystery