Design uses Vigreux indentations for increased surface area within the vapor path. This promotes better refluxing prior to condensation, yielding a better separation.

With a standard taper thermometer in place, the bulb and stem serve as column packing. Closely coupled condenser and vacuum connections provide a short condensate travel path.

Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.