YFTK Four One Five 415 RTA Virtuous Style Atomizer

510 threading connection
Top Filling System
Single coil deck
Tank capacity: 3.3mL
Tank material: PEI
Body: 316 stainless steel
Air plug pin:
0.8mm x 2 holes (installed)
1 hole x 1.0mm
1 hole x 1.4mm
3 holes x 0.8mm
3-position airflow control ring: 1 mm x 3 holes
New deck with cotton placement and precision feeding grooves
Auto-guided top-fill e-liquid:
This dispenses the liquid via negative pressure rather than gravity, so there's no need to adjust the amount of cotton.
Larger vaporization chamber
New, enlarged external AFC (Air Flow Control)
New airflow pin replacement system
Diameter: 22mm