520 V2 Kit - Cthulhu
The 520 V2 is an AIO atomizer designed for box mods compatible with the Boro R4 format. It features a modular design, combining a rebuildable base with a single-coil deck and a chimney compatible with PnP coils. Its 4.2 ml capacity is paired with a front-filling system. The airflow is adjustable via interchangeable pins.
€44.90
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520 V2 Kit - Cthulhu
Versatility in the service of performance
Design
With a generous 4.2 ml capacity, the 520 Tank V2 is designed for AIO box mods compatible with the Boro R4 format. It stands out thanks to its convenient front-filling system with a silicone tab and broad compatibility with most bridges on the market. It also comes with two interchangeable airflow bases.


Rebuildable option
The 520 Tank comes with its rebuildable bridge pre-installed. Its single-coil deck with two opposed posts allows for simple and efficient coil installation, while bottom-fed e-liquid delivery ensures excellent wicking. The central airflow is adjustable via interchangeable pins, offering a wide range of vaping sensations. With six airflow inserts (0.8 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, and 3.5 mm), it supports everything from tight MTL to moderate DL draws. It can also be used without any insert, providing a maximum opening of 4.5 mm, making it one of the most open bridges on the market.
PNP option
To make the 520 Tank one of the most versatile bridges on the market, Cthulhu Mod includes a dedicated chimney for use with prebuilt coils. One of the chimneys is specifically designed to accommodate PnP coils, providing a convenient alternative to rebuildable setups while maintaining excellent vaping performance.

Package Contents
- 1 520 V2 RBA
- 1 PNP adapter
- 1 510 Adapter
- 1 Boro Reservoir
- 1 Open AF Base
- 1 Restricted AF Base
- 1 Pin 0.8
- 1 Pin 1.0
- 1 Pin 1.5
- 1 Pin 2.0
- 1 Pin 2.5
- 1 Pin 3.5
Features
Reference AIO-CTH-520-V2
Brand | Cthulhu Mod |
---|---|
Capacity | 4.2ml |
Material | Stainless steel |
Connectors | AiO Billet Box AiO Boro Box |
Inhalation | Direct (DL) Indirect (MTL) Restrictive Direct (RDL) |
Tank | PCTG |
Filling | Front |
Airflow | Bottom |
Airflow Control | By interchangeable pins |
Deck | Non Rebuildable Single Coil |
Origin | China |
Type of product | Boro Bridge Boro Tank Atomizer |
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