The iSub Apex Tank coils are designed to be used with the Innokin iSub Apex. The iSub coils are made from 100% organic Japanese Cotton for the best flavour production and performance and are rated at 0.2 ohm, 0.5 ohm and 2.0 ohms.

The iSub series from Innokin employ a new and innovative technology Innokin are calling the "No spill coil swap" system. Essentially the coil can be removed without the need to 'open' the tank.