Cthulhu Tank 520 Boro V2 it is a bridge rebuildable (RBA) developed to provide versatility, pure flavor and superior performance on compatible Boro devices such as Delro, Billet Box and Pulse AIO.

The version V2 features significant improvements in the liquid management and airflow, offering consistent vaping and better flavor reproduction. Compatible with PnP VooPoo coils through the included adapter, the tank easily switches between RBA and pre-made coil.

Made from stainless steel and transparent PC, ensuring strength, durability and a modern aesthetic.

Product Details

• Brand: Cthulhu
• Version:  520 Boro V2
• Type:  Bridge / Tank Boro rebuildable (RBA)
• Compatibility: Billet Box, Delro, Pulse AIO and other Boro Mods
• Material: Stainless steel + clear PC
• Capacity:  ≈ 4.2 ml
• Airflow: adjustable (3 pins included for customization)
• Rebuildable: Deck single coil with vertical posts
• Extra compatibility: Adapter for UB Max coils (Lost Vape)
• Includes: airflow pins, replacement kit and Allen key
• Safety, Quality and Legality Guarantee: This product complies with all safety, quality and legality standards, ensuring a reliable and safe purchase. Contraste Vaping® guarantees that all products are tested and approved, in compliance with Portuguese and EU regulations.

Product Advantages

• Total versatility: compatibility with RBA and pre-made coils.
• Customizable airflow: for MTL, RDL and DTL.
• Robust and modern design: in stainless steel and clear PC.
• Easy assembly and maintenance: practical refill system.
• Wide compatibility: ideal for Boros style mods.

Packaging Contents

• 1 × Cthulhu Tank 520 Boro V2
• 1 × PnP Series Coil Adapter
• 1 × 510 Adapter
• 1 × Gold bottom cap
• 6 × Airflow pins: 0.8, 1.0, 1.5, 2.0, 2.5 and 3.5mm

How to Use

1. Assemble a single coil and cotton according to your preferred style.
2. Fill the tank with e-liquid through the side opening.
3. Install on a compatible Borо Mod.
4. Adjust airflow and power (ideal between 15W and 45W).
5. Wait 5 minutes before first use to avoid dry hits.

Maintenance and Care

• Avoid dry hits: occurs when the cotton is dry, causing a burnt taste; keep liquid in the tank to prevent it.
• Clean the battery contacts, connections, and tank regularly to prevent dirt buildup and flavor loss.
• Dial in the airflow and power to avoid dry hits and extend coil life.
• Avoid prolonged exposure to water, dust, or drops—though rugged, it still requires basic care.
• Store the device in a dry place and away from extreme temperatures.
• Keep liquids in a cool place and out of reach of children and pets. Use high-quality liquids from reliable brands to preserve flavor and avoid tank damage; try different liquids or concentrations to vary the flavor and avoid "vaper's tongue", which occurs when the palate grows accustomed to a single flavor. We recommend 70%VG / 30%PG liquids for coils below 0.6 ohm, and 50%VG / 50%PG for coils above 0.6 ohm.

Safety and Care

• Vaping requires knowledge, care, and safety awareness. For a broader understanding of vaping and the responsible use of our products to ensure a pleasant and safe experience, please consult the FAQ (Frequently Asked Questions) from Contraste Vaping®.
• Clean the atomizer regularly to prevent residue buildup that could affect performance and flavor. Disassemble and wash all removable parts periodically.
• Use only high-quality batteries, preferably original and from reliable brands. Always charge them with: appropriate chargers charging devices. Do not use damaged batteries or those with defective protection.
• Keep connections clean and dry to prevent short circuits.
• Do not exceed the recommended resistance and power specifications.
• Store the equipment and the batteries in a safe place, away from excessive heat and avoid prolonged exposure to water or moisture.
• If you notice swelling, battery overheating, strange taste, leaks, or any other issue, stop using immediately and contact us.