Apparently, there are different ones:
The Subtank Plus v2:
510 Threaded
Glass tank
Base hardware: stainless steel
Dual coil 0.8 Sub Ohm or above
OCC Sub Ohm 0.5 Ohm/ 15-30W
OCC Sub Ohm 1.2 Ohm/ 12-25W
RBA custom make
Replaceable glass tank
Unique anti-leakage design
Capacity: 7.0ml for Dual coils/OCC
4.2ml for RBA
Diameter - 25mm
Height - 81mm
Weight - 90g
The mini:
Dimensions: 2-1/8" x 7/8" (L x D)
Diameter: 22mm
The one I linked to:
- 510 connector Features: RBA Coil with PEEK Insulator
- Glass Tank
- Sub-ohm Coil provides incredible vapor production and flavor
- Base hardware: 304 stainless steel
- Updated airflow control valve with two channels
- Japanese Organic Cotton Coils
- Mini RBA Base allows you to build your own coils
- Tank Capacity: 4.5 ML
- 510 Drip tip compatible
E-juice Capacity: 6ml
Threading: 510 Connector
Material: 304 Stainless Steel
Airflow: Bottom adjustable airflow
Diameter: 25/ 22mm(with a beauty ring)
Coil: OCC Sub Ohm 0.5Ω coil (15-30W),
OCC Sub Ohm 1.2Ω coil (12-25W), RBA DIY Coil Features:
-Mini RBA deck for DIY lover
-Large 6.0ml e-juice capacity
-With a beauty ring for 22mm diameter
-Two types of sub-ohm coil for different flav
So it really is the Subtank OG not mini! I'd totally order a few but that website is jacked. Says free shipping at $30 but you get to $30 and they want $35 for shipping. Already been through this once.