An elbow in one of my downspouts is broken and I want to replace it. But the downspout's measurements are 2 1/4" x 1 7/8" which is different from the standard sizes in USA which are 2" x 3" inches or 3" x 4".
Are there replacement parts available for 2 1/4" x 1 7/8" downspouts, and if so where? I couldn't find anything useful on Google, Home Depot, Amazon, etc. but might not be looking for the correct keywords. Is there a name for this size that isn't the actual dimensions, like how a wood "2x4" isn't really 2 inches by 4 inches?
If replacement parts aren't available, then how should I replace this odd-size downspout elbow without having to replace the entire downspout? (The downspout goes up 3 stories so would be a pain to replace-- and only the detachable elbow at the bottom has a problem.) This downspout is in an out-of-the-way corner of our back yard so I don't care about appearance. In other words, it's OK if the fix is kinda ugly as long as it won't leak.
Here's what it looks like now: