This liquid freezing downstem from Weed Star is another brilliant freezing accessory. This fits into an 18.8mm joint and has a 14.5 ground connector for your bowl. The downstem can be put into a freezer (for NO longer than 15 minutes) before use and provides a cooling effect on the smoke as it passes through.
This downstem varies in color. A must have for any glass bong enthusiast.