Niuohoy Gutter Elbow 3x4 90 Degree Downspout Elbow Gutter Connector Roofing Gutters Rainwater Drainage 90° Gutter Downspout Extension (Style B, Aluminum, 3x4)

It's a unique piece that isn't readily available because of how gutters work with gravity. Ordered it with their other 90° bend to get my down spout on the other side of the house for a rain collection system. It's oversized openings makes it extremely hard to seal and prevent leaking when using the two pieces together. I had to get an adapter from home depot to create a tight fit between the two, but then had to grind down one piece to get the plastic adapter to fit. They are solid metel nice quality pieces. I suggest planning your gutter build without having to use these two pieces following each other.

Works, had to seal connection to to other 90 degree angle in reverse size to mKe a down 90 degree to the side and an other 90 degree to down side of wall. Had to divert drainage to front of house to stop back flooding.