The Voopoo Uforce tank series to make them compatible with the 5ml glass tube.
If you have the UForce T2 tank, which comes with the Drag Mini kit,
The capacity of the original UForce and UForce T1 (stand alone tanks only) can be increased simply by adding the Voopoo 5ml extension bubble glass.
- 5ml Bubble Glass
Keywords: Voopoo Drag V2, Mini, Uforce T1/T2