This condenser is similar to CG-1210 but with the upper outer joint replaced with a serrated hose connection for use with a drying tube. This style of condenser is used primarily in Soxhlet extractions or in reflux mode. The hose connections have an O.D. of 10 mm at the middle serration. The overall height of the condenser is 330 mm on the 24/40 version and 360 mm on the 45/50 version.