Freemax - M Pro TankFreemax M Pro Tank The Freemax M Pro is a remarkable sub ohm tank, with its 5 mL capacity bubble, Sliding top fill cap and high wattage mesh coil. Its mesh coils are made up of flat metal films, this unique design enhances the heating surface area, producing more even heat and extraordinary vapor. The M Pros large airflow slots and wide bore drip tip, produce smoother high quality vapor. The M Pros appearance is just as phenomenal as its performance,