Medica instruments mfg co specializes in the manufactures of sterilization, pathology and organic chemistry lab instruments, namely vertical autoclaves [steam pressure sterilizers], rotary vacuum evaporators, baths - oil & water / stirred / round / shaking, water stills, colony counters, anaerobic jars etc. Medica markets these products under its own brands, namely equitron, lapiz, equitron-roteva, and stone-fin.
The salient features of the concentric rings water bath are,