Single coil adapter for EHpro Billow V2

UPDATE: ABS failed on heating test, hopefully I will find somebody who can create this adapter with teflon. If you have any suggestion about the best material, feel free to share it with a comment.

After using many UD tanks I realized that how much I miss the single coil option in my other tanks. For example in my Billow V2.

I tried to search if there any good solution for this but without any luck, so created my own one. It will close the airflow and the liquid holes for a great MTL exper