A mechanism for transferring processed air in an appliance, such as a dryer or washer/dryer combination or the like, between a tub assembly and an exhaust housing has a flexible duct with an inlet end and an outlet end. The inlet end connects to the tub/drum assembly and the outlet end connects to the exhaust housing. A compressing and expanding member is positioned between the inlet end and the outlet end. The mechanism compressing and/or expanding with movement of the tub/drum assembly during washing and/or drying cycles. At least one of the inlet and outlet ends includes a retaining member to secure the duct with the tub/drum assembly or the exhaust housing.