Flat Oval Spiral Duct Enjoy the below video clip to begin to see the installation of oval duct and fittings. Detect which the reducer being used is undersized on its collar allowing the oval duct to slide more than the collar. These are employing Unistrut with threaded rods as hangers https://ovalconduit80112.blogdanica.com/36631403/5-simple-techniques-for-oval-conduit