Neanderthal,
I think it's called Norton (that could be the brand of the belt though)? They have a black and white quarter page photo add in just about every knife magazine. I'll take a look for the add when I get home tonight.
Tim
FYI - I generally don't recommend this, but in a pinch you can wear down a 220 belt some so that it isn't quite as sharp, then use it as your sharpening belt. It is much preferable though, imho, to get a finer grit for sharpening. The smiths I know that use belts for sharpening typically use their more worn-out belts for sharpening anyway. If you do want to try it with the 220, test it on el cheapo knives so you can see what results you get and if you're happy with them.