At first I thought so......
I've ordered some stuff from: Wildman, Hawk Mnt., & Giant Leap.
All of which carry FG tubing. On my last order; GL asked which did I want: Convolute or filament wound? I had a piece of filament wound from Wildman & thought it looks about the same... It turns out that the stuff is" NOT THE SAME!
The piece I received from GL was a bit on the sloppy side & when you drop a 54mm motor casing into it; you can rattle it around a bit. It was of the older non-extreme wind tubing, (almost transparent)
On the other side of the coin: the 3" PR convoluted & Hawk tubing is identical size wise or pretty close to it & will fit in most instances.
Hope this helps
JD