Where can I buy a hardline water cooler?

[Super_]

I'd like it to be a kit but I'm up for the challenge of putting it together.

 

[Robert Cook]

I do not think they make kits for that, soft line yes, but hard line no.
pretty much get a pump (or two), a radiator or two, a CPU and or GPU water block, and some tubing (PETG is best).

 

[bignastyid]

Hard piping is DIY.

 

[Robert Cook]

^