OBS’s Engine RTA is 25mm in diameter and is the original RTA by OBS. Earlier we reviewed OBS’s Engine “Nano” RTA which is the 22mm tank. The Engine RTA has side filling and top airflow control. It has a temperature control mechanism which makes it able to function at high wattages while reducing the heating delivery to the chamber and base of the coil. It comes in black and silver.
The reviewer observes,”This RTA is fairly small compared to others and it holds 5.2ml of e-liquid. Another good design from OBS.” The drip tip has a 510 connector, so you are able to use your own drip tips on this RTA. She indicates some pros with the Engine RTA. The flavor is very good with this RTA. The air flow stays in place once adjusted; so no need to worry about it moving around on you. The design is very compact and still holds a respectable amount of liquid. The cons include: some spitback and the top cap doesn’t disassemble. She says the pros outweigh the cons and rates it a 4/5.
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