Since I was bored I called Goodridge.
Their lines are made in Torrance, CA USA. (Kind of odd they do not put that on the box).
The ones you mention are an aesthetic upgrade over their standard stainless lines. Part # 12219. She said the fittings are a bit different but it is mostly their "exclusive" line. Think Lexus versus Toyota.
If I get bored later, I'll call Pedders.
Mods: GM Locking Gas Cap, RS License Plate Frame