Does anyone know what (if anything) would be compatible with the volcano e-cig? And I'm not sure, but I think the 510 is compat with the Magma??
If you're into DIY, do a search for the P&G link...you can order gallons of VG for free.
I slap 306 cartomizers onto my volcanoes and love it. They are my "going out to the club" setup.
Volcanoes are threaded 510/306
The Volcano-V (mini-cig style) cannot fit anything but the V line.
The Magma and Inferno line are interchangeable (510/306).