An outlet tube is the transition piece that connects a gutter to a downspout. A hole is cut into the gutter where the outlet tube is inserted and then attached to the gutter. The downspout slips over and attaches to the outlet tube. Water is thereby directed seamlessly from the gutter and into the downspout. We have aluminum outlets for k style and half round gutters in a variety of shapes and sizes to fit virtually any application. Our aluminum outlet tubes should be sealed into the gutter with gutter sealant.