The Medi Grade Funnel Atomizer is designed for use with the original Cloud Pen Vaporizer. It's built for the "heavy user" because it features a heating chamber that is twice the size of the normal chamber. This chamber also utilizes a 80 degree angle that assists with holding larger quantities of waxy oils and it's removable for easy cleaning.
The Medi Grade Funnel Atomizer is only compatible with the original Cloud Pen. It will not work with the newer Cloud Pen 1.0, 2.0 or 3.0 models.