Hi Mark,
The CR360 and CR120 reservoirs are not limited to a fixed chassis. They don't have designated IN/OUT ports for the CPU or GPU, only for the pump, allowing you to follow the pump's limitations and make the loop flexible.
We are not sure how to install CR120 on the CR360 reservoir, so we generally do not recommend doing so. However, you can install the CR120 on the left side of the chassis and the CR360 on the right, or position the CR120 below the CR360 if the space is enough.
When you install the rapid transit terminal on the CR360, you can slightly adjust the loop up and down to make it easier to connect the CPU or VGA water block.
If you have any questions, feel free to contact us.
Best regards!
Lily Wong