Amazon.com: CHEM SCIENCE INC CS-C0171120 Condenser, Distillation, 14/20 Joint, 110 mm Jacket Height, Overall Column Height 180 mm with Indentations to Support Packing Material : Industrial & Scientific
4″ Reflux Column with condenser and built in Proofing Parrot - Whiskey Still
QWORK Glass Fractionator Vigreux Distillation Column with 24/40 Fitting 7-7/8" Long with Laboratory Indentation Condenser for Distillation Equipment in Organic Chemistry: Amazon.com: Industrial & Scientific