btw, I found these at Lowe's.
I also realized that I could use these on my other projects with copper tube, so I got a couple to try out. If they seal well it might be easier than soldering fittings on.
Of course, I got home and snapped a 1/2" copper tube. I suppose I need to go to Lowe's and see if there's an affordable tubing bender next week. 1/4" and 3/8 bends okay, but the 1/2" is too stiff to bend in the 12" lengths I got. ARG!
On the bright side, I buffed up and finished one keggle. I water tested it and no leaks. Will clean it then at some point mark out the sight glass levels.