We were "shocked" when we first tried out the BB vapes Shell Shock DynaVap Stem.
The price is right for this industrial looking stem. It cools the vapor extremely well with the integrated spiral airflow chamber, and heat fins. The stem comes apart for easy cleaning, and even allows you to set the airflow. That means you don't have to fiddle with the airport unless you want to. There is also a built in condenser allowing you to simply attach your favorite DynaVap Tip and Cap and start vaping.
DynaVap Tip not included.