GT Cores are specially designed to fit into the NRG tank series. It comes in traditional cotton and Vaporesso significant CCELL Ceramic in different resistance, from GT 2 to GT 8, and the newest addition the GT Mesh, CCELL2, and GT 4 Meshed cores, totaling 8 coil selection to choose from. Gear up with GT Cores as you desire.
Material: the advantages of a CCELL ceramic or COTTON choice
Sub-Ohm resistance (0.15-0.5 Ohm) as standard
Creates bigger clouds than standard coils
GT 2 
.4 OHM
40w-80w
GT 4
.15 OHM
30w-70w
GT 4 MESHED
.15 OHM
50w-75w
GT CCELL
.5 OHM
20w-35w
GT 6
.2 OHM
40w-130w
GT8
.15 OHM
50w-110w
GT MESH
.18 OHM
50w-85w
GT CCELL 2
.3 OHM
35w-40w