it's cheeper to buy one that size. You can only find it at suppliers who sell glass blowing supplies and products.

Buy one here for about 80 bucks. That is hard to beat.

http://www.mdhydro.com/ht-reflectors.html
Zandor Reviewed by Zandor on . I have a question about locating Pyrex tubes. Yes, I have searched. I am looking for Pyrex tubes that are larger than the common bake a rounds that are available everywhere. I would like a 6"-8" diameter and 19"-27" length. I do not want to pay hundreds of dollars for just a tube either (I found those.) I have searched ebay, a plethora of search engines, several forums, and local stores but have seen nothing for a reasonable price. Please, help. FERMENTATION smells like happy me. Mmm mmm good. Rating: 5