Champion Frame Corners

Your corner is very unusual. Take a look at our 95-031 corner. It seems to have the same 3/4" wide face like yours. My only concern is that extra piece on the leg. You might to go back to the supplier to get the exact corner.

If you could show us the cross section of the screen frame, and give us the width and height, I might be able to confirm if the 95-031 could work.