Speaking of OBS, you will definitely mention the Engine RTA, which really made a hit on the market. Now OBS are back again with two new additons to this growing series - Engine Sub tank & Sub Mini tank, which are no doubt designed for sub ohm vape lovers who don't wanna trouble to rebuild. Both tanks come in same height but vary in diameter and e-liquid capacity. Engine Sub tank features a large 5.3ml capacity with 25mm diameter, while Engine Sub Mini adopts 23mm diameter with a 3.5ml tank reservoir. Both tanks use same 17mm prebuilt organic cotton coil with lower juice guilding holes that make e-liquid conductivity more efficient. Full glass window enables you to check the e-liquid level easily. All parts can be easily detached for cleaning. Plus top side filling, 360 degree airflow circulation system and leak proof design, these two sub tanks will bring you great sub ohm vaping experience.
Original top side filling
360 degree airflow circulation system
17mm organic cotton coil
https://www.heavengifts.com/product/OBS ... ilver.html
https://www.heavengifts.com/product/OBS ... Black.html
Use "AHG10" to enjoy an extra 10% off discount.