Dura-Connect Gas Connector Pipe 5in x 60in. Check out this revolutionary UL Listed gas appliance connector. It streamlines your installations and is a great timesaver. This .012in thick bendable aluminum connector has built-in twist-lock fittings for fast easy professional installations. It is adjustable in length providing up to 4in per foot in compression -zero stretch. It only requires a 1in clearance to both walls and ceilings. It is used as a connector between appliances and Dura-Vent Type B Gas Vent.