Magnum Air Gap installation issue

What brand did you use and did yo have issues sealing the side gaskets?

I've heard several horror stories including one from my brother in law.

I also have a standing question regarding if all the knock-off castings are the same and if some do and some don't have "the issue".

I have yet to receive any answers.

No issues at all! Works great, I'm sure the others like M1 and whatever are "better" but half of them are probably made in China to unfortunately.