6 FLEXIBLE METAL DUCTS, PIPES AND HOSES FOR PURPOSES OF DISTRIBUTING AND VENTING AIR AND FLUE GAS IN RESIDENTIAL AND LIGHT COMMERCIAL APPLICATIONS, NAMELY, FOR USE WITH HEATING, VENTILATING AND AIR CONDITIONING SYSTEMS, AND RELATED ACCESSORIES, NAMELY FITTINGS, CONNECTORS, HANGERS, REDUCERS, ELBOWS, LOCKING BANDS, LINER SUPPORTS, ADAPTERS, SPACERS, TERMINATION BOXES, WALL THIMBLES, DRAIN TEES AND END CAPS ALL MADE OF METAL