The SMOKtech TFV4 Triple Coil Sub-Ohm Tank now is available in black, and has asserted itself as one of the premier tanks today, with a new patented Triple Coil Head, top fill capability, 5ml tank capacity, and compatibility with several interchangeable coil heads. The TFV4 features a Triple Coil Head, designed with each coil separated into independent tubes, improving upon heat insulation and airflow delivery. Each coil is manufactured out of pure organic cotton for top notch taste, coupled with a wattage range of 40 to 130W to pair perfectly with the X Cube II. The top fill system is designed to be easy and efficient, with a hinge and lock system that can be opened easily and without threads. Airflow features dual quad airslots, located at the tip and at the base, which allow for immense airflow and cooling properties.The TFV4 Drip Tip is specifically designed with a double layered barrel structure, with the intent to provide auxiliary heat proofing. The TFV4 has also been specifically designed to be compatible with a multitude of SMOKtech's upcoming and existing coil structures, including the new TFQ4 Quadruple Coil, giving it the range and flexibility to be outfitted directly to the user's preference. Manufactured out of high grade Stainless Steel and Glass, and now in a rich black finish, the SMOKtech TFV4 asserts itself as a heavyweight contender in the highly competitive Sub-Ohm Tank market!