For the time being,there are three popular RBA Tank in the market,they are kanger subtank series (here i will take subtank mini for example) , Apsire Triton Tank and Cloupor Z4 Sub ohm Tank and following are more details about these three RBA Tanks

1.Kangertech Subtank mini Tank

Just as the titled showed,subtank mini came from kangertech ,it is the latest generation of tank from this team.Kanter subtank mini features a 4.5ml liquid capacity, dual head coil made by Organic Cotton Coil (OCC and RBA ), added new adjustable airflow control and so on.What's more, the package comes with 2pcs coils( 0.5 and 1.2 sub ohm coil ) .

2.Apsire Triton Tank



Triton Tanks was a new revolutional product announced by Aspire technology ,brings optional RBA system .This tank features a 3.5ml E-Juice Capacity,brandly new dual airflow adjustable system and top filling system and have three coil available : 0.3, 0.4 and 1.8ohm.. The Aspire Triton Tank’s drip tip is the ultimate drip tip and the coils are crafted with Japanese organic cotton (OCC) . What's more, 1.8ohm Coils For Mouth To Lung Inhale.

3. Cloupor Z4 Sub ohm Tank



Cloupor Z4 is the newest tank from Cloupor technology , featuring a 4.5ml tank capacity and Dual replaceable Coil head (OCC and RBA ).Cloupor Z4 Subtank builds in a 0.5ohm sub-ohm coil ,which works well with 20~40W APV mod and with RBA deck, you can diy make your own coil. In all,it will provides great vaping experience.

So from my own experience,if you want a advanced tank with big liquid capacity,then you can give kanger subtank mini a shot.But if money is your considered,then you buy Cloupor Z4 ,which is cheaper than mini,features are attractive as well. But if you want a famous tank with cool features,then you can give Aspire triton a shot,it can live up to your requirement and Aspire team is powerful and with a good technology supporting.