The Cthulhu MTL MRDA is advertised to be a 22mm in diameter mouth-to-lung RDA. It has an unusual top airflow mechanism, 3 slits on the top cap. The drip tip also isn’t typical of most tanks these days, it is not centered. It is off to the side and is attached to the top cap; it’s all one piece. The wattage potential is 12-50 watts. It comes squonk friendly (BF Pin included). You have the choice of black and stainless steel.
The video I included below displays a very strong unfavorable opinion of Cthulhu’s MRDA. The reviewer sheds light on multiple features that he feels were designed completely wrong. He states, “The drip tip is absolutely horrid, and doesn’t even align with the coils or the airflow. And why would you put airflow on the top where your lips are? WHY?” Aside from his drip tip and airflow concerns, he doesn’t think it should be sold as a MTL tank. If the airflow doesn’t align correctly, you are unable to get that restricted flow needed for a MTL vape. Also, he suggests it looks like a “sippy cup.”