A boro tank is the rectangular, slide-in tank used in Billet Box-style (BB) boro mods. Unlike standard round tanks, boro tanks sit flush inside the mod body — no glass exposed, no leaks in your pocket, and easy top-fill access through the mod's front panel.

Boro tanks at 2FDeal — sorted by material:

• PC / PCTG Boro Tanks — Lightweight, impact-resistant, see-through. Ambition Mods Boro Tank V2 (PC), Ambition Mods PC Boro Tank, SXK PC boro tanks. Best for everyday carry — won't shatter if dropped.
• Glass Boro Tanks — Crystal clear, no distortion. Compatible with most boro mods. THC Blaze Bridge includes sliding single or dual glass boro tanks. Best for flavour purists who want to see their juice level at a glance.
• Aluminum Alloy Boro Tanks — Premium feel with engraved patterns. MK Mods warrior-pattern boro tanks (blue, purple, red). Aluminum Alloy Box for SXK BB boro tanks (black, blue, green, silver). Heavier but near-indestructible.
• Stainless Steel Boro Tanks — BP Mods TMD Boro Tank. 5ml capacity. Solid metal construction for the ultimate durability.

Each boro tank holds approximately 4.5-5ml of e-liquid — enough for a full day of MTL or restricted-DL vaping. Most tanks work with standard boro bridges (SXK, ULTON, 5AVape, etc.) and fit BB Billet Box, SXK Supbox, Sunbox, Naga, and similar boro mods.

Boro tank buying tip: if you chain-vape sweet juices, carry a spare PC tank — glass is clearer but PC won't crack from heat cycling. Aluminum is the choice for looks and durability but you cannot see your juice level without opening the mod.