The 520 Tank is an RBA and a bridge from CTHULHU MOD. This unique setup offers an RBA by default, but also comes with a PnP and Nautilus adapter. It is specially designed to reduce L-shaped airflow effect.
The 520 tank has a 4.2ml capacity.
It comes with the following airflow Pins: 0.8mm, 1.0mm, 1.5mm,2.0mm,2.5mm,3.5mm, 4.5mm(without air pin)
Matthew Haggerty –
So far I’ve only used it with a pnp coil and wasn’t that impressed. It is a tight fit in a Rev.4c BB and coil would not read. Popped it into a Cthulhu and worked fine. Finished the coil, removed boro and the back was covered in juice. Could possibly be user error/sloppy refilling. will give another go with different coil in a BB before trying Rba bridge.
Cindy C –
Just received the Cthulu 520 tank and I am really enjoying the rebuildable part. The airflow (3.0 airflow pin) and flavor are excellent. I am surely going to try the pnp and nautilus adaptors soon, but I prefer using my own coils. One caveat about VaporDNA-I ordered the 520 as a birthday gift to myself and noted that on my order. I received gifts from VaporDNA in my shipping package, with a written note, and I want to say thank you. It was a joyful surprise.