Graham condensers are a simple condenser design used to cool and condense hot vapor as part of a distilling apparatus. These condensers have a coiled inner tube that the condensing vapor passes through, and a large outer jacket that cooling water passes through. Quick fit connecters at the top and bottom, and fittings for 8mm tubing for cooling. Jacket length: 200mm Diameter: 25mm Total length: 300mm Joint size: 14/23