Just a heads up on this, recently got a v2 innokin itaste vv thinking my Kanger T2 heads will go straight on, as most sites state almost all 510 heads fit this without an adapter. Wrong, had to get a seperate 510 to ego adapter to make it fit, now works but one of my heads still wouldn't screw on and it looks a bit of a mess and seems fragile. The itaste is a nice product though. Just ordered some new itaste dual coil rebuildable clearo's to give it a flush fit, will let you know what they are like.