I'm about to install the panel and in my manual, it calls out 21902.000, 3/8" x .035" tubing. I only have 15175.000, 1/2" x .028" alum tube. The 21902 doesn't exist in my inventory papers, and the 15175 tubing is not in the online version of the manual, so I don't have an old version. Can anyone else confirm it's the 1/2" tubing that's now coming in the kit instead of the 3/8" tubing? The 1/2" tubing calculates out to a larger tensile strength so it's ok to use. I'm just trying to make sure I'm not crazy!

Thanks!