If you have acquired a CPU KIT and wish to integrate a GPU water block into your system, it is feasible to achieve this by procuring an additional pair of identical fittings akin to those provided in the CPU KIT.
For example, if you received STC 13/10 fittings in your CPU KIT, you should purchase two STC 13/10 fittings as well. You should also check if we have a compatible water block for your GPU in this link.
We recommend checking if you have enough tubing and coolant stored from the CPU KIT because you will need some, to add the GPU water block to the loop. If not, you can find identical products on our website.
If you have any more questions please contact our support team for additional help.