The Vaptio C-Flat Mini Replacement Tanks are refillable replacement pods for the Vaptio C-Flat Mini Kit. The C-Flat's tanks are refillable and designed with a top re-fill system. By holding the tank, and opening the silicone cap, just inject the juice into the tank. Try to AVOID dripping into the central airflow tube. Finally firmly close the silicone cap and plug the tank into the mod. Prime the tank by letting the cotton soak for 3-5 minutes before each usage. The replacement tanks come in 1 single pack of 4 empty refillable pods. Grab your Vaptio C-Flat Mini Replacement Tanks from RichMountainDist.com, today!