Chemglass CG-1231-18 Vigreux distilling column with 24/40 standard taper joints, 300 mm effective column length, and approx. 450 mm overall length. This borosilicate laboratory distillation column has Vigreux-style internal indentations running the length of the column to improve vapor-liquid contact and separation efficiency during fractional distillation. Chemglass specifies this style with a top outer joint and lower inner standard taper joint. Useful for organic synthesis, solvent purification, reflux/distillation setups, fractional distillation, boiling point separation, reaction workups, teaching labs, cannabis/hemp extraction labs where legal, and general chemistry glassware assemblies using 24/40 joints. Used surplus glassware; inspect photos for cleanliness, chips, cracks, joint wear, scratches, residue, or lab markings. Includes column only; no flask, condenser, thermometer adapter, clamps, keck clips, or other accessories included.
