I have just discovered that it works just fine with the generic vac sealer that I bought at Walmart!
See, I bought too much wheat recently and needed to find a way to store it. Yes, I could have just gotten plastic bins, but that really doesn't make things easier for me since I store things downstairs. It's easy enough to go fetch a jar of something, but not as easy to go downstairs, probably have to move things around to get to the bin, figure out which bin of wheat I'm getting into, open the bin, get some wheat, close the bin. Plus, I have three different kinds of wheat!
So. I figured mason jars would be easiest. And Pappy vaguely remembered a jar sealer thingy. We used to have Foodsaver machine, but we killed it and so bought the other version that Walmart had, the Seal A Meal. It doesn't have all the bells and whistles and conveniences of FS machines, but it works. And from the old FS machine we had the tube thingy for the attachments, except it came with a marinating tray that we never used. So, I found the wide mouth mason jar thingy on Amazon and ordered it and it works just fine my machine.
But I think I'm gonna have to buy extra jars!