We were asked by one of our customers to repair a jacketed bath used to test living organ tissue, the repair of which was fairly straightfoward. We asked if we could quote on new baths for replacements, as they had a number of these baths in use, and it seemed that they could eventually break them all. In the course of the ensuing discussions, we were able to suggest a few improvements, and meet the customer's needs . In use, the living tissue is suspended in the central vessel, which is jacketed to keep a constant temperature. A nutrient fluid is circulated in through the coiled tube, to equilibrate its temperature before reaching the tissue. Read a comment from the happy customer.