I came across some glassware that I've been unable to identify, and was hoping someone here might know what it is. It is a large tube, approximately 40" long, 2" in diameter, with side tubulations near each end. The bottom is rounded (at least I assume it's the bottom, I don't know how this would normally be oriented). There are no markings on the glass that I can see. I'm not sure if it's a custom piece or something standard.
Any ideas would be appreciated!