The Halo Triton batteries are essentially eGo batteries branded by Halo.
I suggest an IBTanked tank in the 15mm diameter size. You have the option of a halfling, standard length, or XL length.
IBTanked pyrex tanks
You'll need pre-punched cartomizers, which will be available in either the standard or XL length depending upon the length tank you choose. You won't be able to use the Halo blank cartomizers because they are not punched and they have a colored sticker on them.
Below is a 15mm halfling tank on my Gripper mod and a 19mm XL tank on an Vision Spinner Ego battery.

