Here is the part number, yes under hookup wire and sold as a single strand. Simply twist every 1.5 - 2 inches and mark one positive and negative with heat shrink on the very ends. Do not terminate, just use the bare wire. Bested my $2000 cables and others have had the same experience,.
For internal speaker wires and external speakers cables I’ve used Rio Grande dead soft .999 silver foil inside McMaster Carr polyolefin heat shrink tubes. This compares well with Duelund silver foil in silk wrap at reduced cost. For long runs you can double or triple up.
I appreciate all of your comments. I calculated the cost of the duelund at around 270. Problem I'm facing is cost. I'm redoing the caps as well and there's close to 40 caps I'm replacing. So not sure if I should just wait and get some more cash, or go ahead with a little cheaper cable. I was thinking about the jantzen silver coated cable as a cheaper option. But after checking into that duelund cable, I've read it's absolutely phenomenal. That Rio Grande also looks pretty good, but it's up over 225.