Wotofo COG RTA

COG MTL RTA – Precision MTL Performance for Nic Salt & High-Nic Vaping

The COG MTL RTA is a purpose-built mouth-to-lung rebuildable tank atomiser, designed specifically for vapers who enjoy nicotine salts or higher nicotine e-liquids. Created through a collaboration between Wotofo and Suck My Mod, the COG MTL RTA blends innovative airflow engineering with a compact, builder-friendly design to deliver dense, flavour-rich MTL performance.

Featuring a 22mm single-coil build deck, a 2ml TPD-compliant tank, and a unique gear-style airflow control system, the COG allows for ultra-precise tuning of your draw. Whether you prefer a tight, cigarette-like inhale or a slightly looser MTL vape, this RTA gives you full control over airflow and flavour.

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Innovative Gear-Driven Airflow Control

The standout feature of the COG MTL RTA is its innovative gear mechanism, offering 5 distinct airflow settings for extremely fine-tuned adjustment. This system allows you to dial in your ideal MTL draw with far more precision than traditional airflow rings, making it perfect for flavour-focused vaping.

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Compact, Comfortable & Builder-Friendly

• Single-coil deck with fast clamp system for easy coil installation

• Designed for low wattage vaping (5–30W)

• Vapour-condensing 510 Delrin drip tip for enhanced flavour

• Compact 22mm profile – ideal for smaller mods

• Transparent PCTG tank for a modern, mechanical-inspired look

The deck comfortably accommodates coils up to 2.5mm inner diameter, making builds quick and stress-free for both beginners and experienced MTL builders.

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Key Features

• Purpose-built MTL RTA

• Ideal for nic salts & high nicotine e-liquids

• 22mm compact design

• Single-coil build deck

• Innovative gear-style airflow control

• 5-level bottom airflow system

• Vapour-condensing 510 Delrin drip tip

• Crack-resistant PCTG tank tube

• Dense, flavour-forward vapour production

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Specifications

• RTA Type: MTL RTA

• Tank Capacity: 2ml (TPD compliant)

• Build Deck Diameter: 22mm

• Height: 34mm (excluding drip tip & 510 pin)

• Coil Configuration: Single coil

• Airflow: Bottom airflow

• Wattage Range: 5–30W

• Recommended Resistance: 0.4Ω – 1.8Ω

• Body Material: Stainless Steel

• Tank Material: PCTG

• Insulator: German PEEK

• Drip Tip: 510 Delrin

• Connection: 510 thread

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Included Coil Specifications

• Dual Core Fused Clapton Coil

  • Material: Ni80 (30G ×2 + 38G)

  • Resistance: 0.8Ω

  • Inner Diameter: 2.5mm

• Single-Strand Coil

  • Material: Ni80 (28G)

  • Resistance: 1.2Ω

  • Inner Diameter: 2.5mm

  • 9-wrap contact build

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What’s in the Box

• 1 × COG MTL RTA

• 2 × 2.5mm cotton strips

• 1 × Dual Core Fused Clapton Coil (0.8Ω)

• 1 × Single-Strand Coil (1.2Ω)

• 1 × Cross-head screwdriver

• 1 × User manual

• 1 × Spare O-ring kit