Fractionating colums, acc. to Vigreux, with evacuated glass jacket, cone and socket ST 14/23, effective length 200 mm, indentations: 15, made of borosilicate glass 3.3
Fractionating colums, acc. to Vigreux, with evacuated glass jacket, cone and socket ST 24/29, effective length 300 mm, indentations: 17, made of borosilicate glass 3.3