I'm compiling a list of tank diameters if you have one please PM me with a link to where you found the info as well.
If you have a RBA/RDA/TANK that isnt shown here PM me as well to add it.
Kayfun 3.1 = 22mm
D-Base small Killer tank = 20mm
Taifun GT = 23MM
Cyclone RDA = 14mm
Richman RBA = 22mm...
Stainless Steel Mechanical Mods:
Electric Angel Mod €149, telescopic, Ø: 20.5/24mm, L: 72.4/124.4mm, W: 99/109g.
Precise Plus $120/180, non-telescopic
ELA
Poldiac €150, non-telescopic, Ø: 22.6mm, L: 72mm, 90mm, 105mm
Chi_You Mod Stainless Steel $225, non-telescopic
Legacy
Roller SS-Custom €117...