Round duct flange collar, with adhesive gasket on flange and rubber seal on collar. Male end.
Could be used secure duct to top or side of machine enclosure
Could also be used to secure duct to top of Mistaway exhaust (for example, when ducting exhaust to the outdoors). 8" collar for top of MA400, MA700, CF600. 12" collar for top of MA1100, MA1500, CF1000.