Features: Size : 17 x 12.5 x 39.85 mm Made By Premium 316SS Perfectly Match Tita Tank And Compatible For Universal Boro Tanks For MTL & DTL Using Airflow Directly From Bottom To Top Strong Throat Hit Bottom Up Juice Leading Design Seven Airflow Pins ( 1.0mm / 1.2mm / 1.5mm / 2.5mm / 3.0mm / 4.0mm / 3.5mm-Installed) Bottom 510 Thread Connector With Dismountable Cover Design No Need Adapter To Be Built On 510 Thread Devices Excellent Craftwork