Product#: TG-3725 Availability: This item normally ships within 1 - 2 business days. Description: Jacketed distilling column has indentations on the inner tube to support packing material. The jacket allows the column to be used as a condenser. Column has a top outer and lower inner standard taper joint. Approximate ID is 10 mm on listed
sizes. May be fabricated to meet your exact specifications upon request..