4x4x3 Downspout Adapter Extender

I needed to extend the connection between the gutters and the drainage system as the Prinsco 4x4x3 adapter wasn't quite tall enough to create a sealed connection.   

Hacked this together in TinkerCAD quickly.  Am sure there's a host of improvements that can be made but if there's a gap in your system this might be tall enough to eliminate it and save you a few minutes designing the part.