Do you know the name of the company that has the single-use bioreactor bag that fits inside a 3L glass bioreactor? I saw it at a recent conference but cannot find the company.

It sounds like you saw the BIOne product from the folks at Distek. As you mention, it is a bag based solution that converts your classic glass bioreactor, 2L and 5L working volume, into a single-use solution by acting as a liner complete with a disposable headplate and all the associated must have’s.

Distek BIOne