Cthulhu Mods just release the 520 RBA Tank,this pod tank is designed for the Cthulhu Mods RBA Kit and your Boro Device.
comes with 4.2ml e-juice capacity
Special Design to reduce L-shaped air flow affect
Smooth and quiet vape experience
Air flow: 0.8mm, 1.0mm, 1.5mm,2.0mm,2.5mm,3.5mm, 4.5mm(withou air pin).