These definitely aren't as nice as the stems that come with the Airzer Air 2... But they work just fine. They don't feel as sturdy... But I haven't had any issues.
stem broke within a few days of use and I was very careful with it not satisfied with purchase.
This Airflow Stem is no joke! It has a snug fit and really delivers. It is superior to other tubes so don't make the mistake of ordering just one, like I did! I will be acquiring a second.
The staff was helpful as always and nothing but kind. I have been a loyal customer for some time and look forward to continuing going forward.
Pro: Noticeable difference in airflow. Con: The stem is a little loose inside the heating element. Ordering a second one; mine broke after 8 months.