The Mason RDA 30mm is part of the Mason RDA series by VaperGate. The 30mm has all of the same features as the popular 24mm, but is slightly larger offering a better look for some setups. The 30mm features a 6mm juice well, split positive posts, and dual stacked slotted airflow. Threaded Delrin inserts minimize heat transfer and Square PEEK insulation offers resistance to high heat configurations. The Mason RDA 30mm can handle whatever build you can throw at it!