316 stainless steel construction
4.5mm Diameter Chimney
Airflow pins: 1.2 / 1.6 / 1.8 / 2.0 (pre-installed) / 2.5 / 3.0 / 3.5mm
Positive pin securing with anti-lift system for safe pin change when the Boro is filled.
Compatible with all Billetbox R4 & P-TANK Boros
Direct wick system for fast, constant liquid flow
Reduced bell with internal dome for smooth airflow and optimized aromatic intensity.
Integrated 510 thread for easy coil construction
Reverse-threaded chimney to prevent Boro leak
Supports Coils up to 3.5 mm in diameter
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