Yes all Bake A Rounds are pyrex glass they are the only ones who make it.
Zandor Reviewed by Zandor on . Cool Tubes ? Where in the world do you buy Pyrex "cool tubes" ? I know a hydro dealer in a city near here has one that's like 6-8' long, but I never got around to asking him where he got it. Do a search for this item.....not a lot of results !! Rating: 5