Hello
There is no water cooling in it. This tower is suitable for custom water cooling.

It is not included.
There are already ready-made water cooling systems to cool the CPU.
If you also want to water-cool the graphics card(s), you have to assemble the system yourself:
-fluid tank
-Pump
-radiator
-transition to CPU and graphics cards
- Pipes (I got the tip to use 16mm pipes and to buy 3x as much as you think you need)
-Angle for the tubes