Product variations: 

Vigreux columns are suited for uncomplicated distillations, and are also useful as air-cooled reflux condensers. A single Vigreux column is quite effective as an air-condenser, and for mor intense  use, we have a bundled version of five upright tubes with indentations, total length = 80 cm. See Air Condenser)

Our models are of length 30 and 40 cm, with 24/40 or 19/22 connectors.