Cthulhu 520 Boro Tank

#2 Best Seller in Cthulhu Mod


This product does not contain nicotine

Largest airflow boro style tank on the market!

Cthulhu 520 Tank RBA is a bridge for AIO type mod compatible with boro tank. With 6-pin airflow range from: 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.5mm, 4.5mm the latter without pin, this RBA is suitable for MTL vaping, up to RDL and DL vaping.

Distinctive design to reduce L-shaped air flow affect

Smooth and quiet vape experience


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Free Extented Warranty up to 6 months

Current Australian vape industry standard of 3 months.

Fast Shipping via AUSPOST

Express Shipping ETA:May 29th - May 31st
Standard Shipping ETA:May 30th to June 1st
*ETA- estimated date of arrival

Note: Australia Post is currently experiencing long delivery delays.

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Main Feautures:

  • Air flow: 0.8mm, 1.0mm, 1.5mm,2.0mm,2.5mm,3.5mm, 4.5mm (without air pin)
  • 4.2ml e-juice capacity
  • Compatible For All Billet Box Styles Mods, including vandy pulse AIO
  • Compatible For PnP Coils
  • Compatible For Aspire Nautilus Coils
  • Elegant Design
  • Compact Design
  • Fit For Single DIY Coil Build
  • Easy Coil Building
  • Six Airflow Pin & Seven Airflow Styles

What’s Included:

  • 1x 520 RBA and Boro tank
  • 6x Air-flow pins from 0.8mm to 4.5mm
  • 1x Nautilus coils adapter
  • 1x PNP coils adapter
  • 1x 510 adapter
  • 1x Adapter base