Inside Box Miters are the corner pieces made to connect two pieces of gutter at a corner. The miters are made up of two pieces of gutter and have a factory seam in the middle. These are the contractor favorite as they have a clean appearance and are fast and easy to install. Works for 90 degree corners.
The box miters can be connected to the adjoining gutters with pop rivets and sealed with a seam sealer. Copper and galvanized box miters can either be soldered or riveted and sealed.
Aluminum inside miters are available in aluminum, copper, galvanized, galvalume, and paint grip steel.