A Laboratory Condenser is a device used in the laboratory to cool hot gases into liquids. It is usually a long, circular glass tube. Inside the tube, there is another, smaller tube. A condenser is used for example in distillation, where the hot vapor needs to be cooled down back to liquid to be collected. It is used to cool down the generated vapors and convert them back into liquid form. The Laboratory Condenser is very effective and easy to use.