The OXVA Xlim V2 Pod refillable cartridges have fixed mesh coils available in 0.6ohm,  0.8ohm and 1.2 ohm.

Once the coil has lived out its lifespan you have to simply dispose the full pod and replace with a new one. The V2 Pod can be filled through the side filling port meaning you will not have to remove from the device to fill.