Copper outlet tubes are the transition piece between a copper gutter and a copper downspout. A hole is cut into the gutter and the outlet tube is inserted into the hole and secured to the copper gutter. A copper downspout or copper elbow will then slip over the sleeve of the copper outlet. We carry copper outlets for k style and half round copper gutter systems. We recommend the copper outlets get soldered to the gutter but they can also be attached using copper rivets and a good gutter sealant.