Check the listing for details. HEMPEL COLUMN 300 x 25 mm 24/40 DISTILLATION COLUMN. Condition: New. Listed at 65.95 USD. International Buyers – Please Note: Customs and brokerage fees, import duties and taxes are not included in the item price or shipping cost. These charges are your responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying. Avogadro's Lab Supply Hempel Column Hempel distillation column manufactured from borosilicate with a top outer and lower inner 24/40 joint. The base of the hempel column features a row of indentations to support column packing media ie. (raschig rings, beads, saddles). Specifications: Functional Length 300 mm / 12" Overall Length 400 mm / 15.75" Diameter 25 mm / 1.0" Joint Size 24 / 40 Hempel columns are used in fractional distillations and can be stacked for varying column heights. Column Packing Media All merchandise offered by Avogadro's Lab Supplyis New from the manufacturer! Don't forget to visit my for great deals on all your lab supply needs!!!