No it isn't.
The base itself is a 3/4 inch thick solid aluminum block and the tube itself is steel. I had to make it from scraps I found at work and simply used what I could get my hands on but hey, except for my effort in making the pot it was free and it actually works!
I know I'd need a better material than steel for the tube and I already have a design in mind if I can find the right stuff to make the next one with. I will admit I have an idea about the base itself too and I definitely have the material to do that with. I do have a few pieces of 1 3/4 copper tubing but I don't believe that will be large enough, a minimum of 2' is what I'd need. The pot I made is probrably a good cold bug pot and I don't know how it would do for LN2 due to the tube itself being steel but works fine with DICE.
I also say that because the tube is bonded to the base with JB Weld and I don't know how that would react with LN2 either but definitely no prob with DICE itself.
Edited by Kryton - 5/6/12 at 8:37pm