My smok tank is glass, dunno which one it is I wasn't paying that much attention when I bought it, just made sure it was glass. The glass is not replaceable, it is solid inside the metal shield thingy. I say last a few months because that is what mine has done. It is starting to leak slightly around the orings when left alone for a few days. It was only 8 bux.
Didn't know they made a glass one; I've just seen the poly's. The only reason I like IBT is for the price. You can get a tank for ~$20. Almost all other glass tanks (with replaceable tubes that don't leak on you) are $40-70 per tank.
I still can't seem to find Page 23, but I'll do a search when I get back.




