This was one of the cheaper pieces of glassware ( in terms of 3 neck RBF) I could find and it has held up very well thus far. I always use some form of oil/sand/air bath for even heating and so far no thermal shock issues. The necks are strong and have not snapped; neither have the joints. Joints seal up great and have virtually no leaking with some grease.<br><br>There are little to no imperfections in the glass either. For what I paid, I made out like a bandit with this quality. Very impressed indeed.

as expected, typical size for 3 neck. removed one star because stony lab glass doesn't accept joint clips, the joint ring is too wide. every other brand accepts the normal joint clips.

This is good quality glass. Just note that it uses a angular interface bulge ground glass joint, not the arc bulge joint that most other companies use, and needs a different keck clamp.

The bottle I received looks strong enough with clear glass. I haven't started using it but will give an update after I use it

the wall is too thick for us to run our experiments