RPM2 RPM 2 Pod: Featuring a larger mouthpiece and greater airflow, this RPM 2 pod is suitable for Direct-to-Lung (DTL) style vaping and are compatible with theRPM 2 coils only. RPM2 RPM Pod: Suitable for Mouth-to-Lung (MTL) style vaping and are compatible with a wide range of RPM coils.