Bought one of these for the Gemini Hybrid I bought without reading it is only for the Lost Vape Q and Thelema range. Thought I had wasted a tenner buying 1 but it does actually fit you just cant screw it onto the base that also acts as the airflow so at best you would get a very loose mtl (the plugs for the doors do actually help reducing the airflow) so if you do mostly DL you would be fine.

Thought i would post this as there is no info from FT what it actually is for and in case anyone else is wondering. I made the mistake and bought from elsewhere just because of the shipping times from here.