Features 4 deep juice channels as well as a 4 post design for easier building. It has 2 large 2.5mm airflow holes (bigger than the Orchid or Fogger v4/5) which can both be adjusted separately with the adjustable airflow pin located on the bottom side of the atomizer. On the deck, it features 2 large raised cyclops airflow holes to distribute the airflow evenly throughout the entire coil and to help prevent any leakage. We reduced the size of the chimney as much as we could to preserve the flavor while giving enough space on the deck for you to build on.
The Black Billow is an additional (+$1.5)
Suggestion for Those Experiencing Leakage: To prevent/reduce any kind of leakage from the airflow holes and/or AFC screws, please make sure that a portion of your wick is blocking the gap between the positive and negative posts on both sides of your build. The Billow's juice channels are much larger than other RTA's and using more cotton on the deck is recommended. Wrapping a bit of plumbers tape around the AFC screws also works with minimizing leaking!