The Kylin M Pro and Kylin M are almost the same volumes. However, the new version greatly increases the e-liquid capacity to 8ml by engraving the CNC inside the hardware. To refill the tank, just rotate the top cap 90 degrees and take it off, then you will see the filling port.

Besides, the M Pro keeps the top airflow intake design to prevent leaking and comes with long lifespan mesh coils. With purchase you will get two A1 M coils one is 0.15ohm and the other is 0.2ohm, but you can also use other M Mesh coils by Vandy Vape. At last, the new version is available in 6 colors, so there is always one for you.
Buy it here: https://vapesourcing.com/vandy-vape-kyl ... o-rta.html
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