These innovative jacketed Kuderna-Danish concentrator tubes circulate hot water through the jacket to boil the solvent during extraction/concentration.

• Bottom portion of the tube is never heated, so samples won't boil dry
• Concentration automatically stops when the solvent sinks below the jacket
• Lab technician time is saved by eliminating the need to watch evaporations closely to avoid boiling dry
• Serrated tubulations allow for easy tubing connections

Standard taper top joint: 19/22.