KIMBLE® 21802 KIMAX® Vigreux Distillation Column with Drip Tip. The 200mm long column has a 19/22 outer joint at the upper end and a 19/22 inner joint at the lower end. Drip tip is provided at the lower end. Inner tube has twelve sets of rings of indentations spaced approximately 14 mm apart. Sets are alternately horizontal and slanted downward. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.
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