Every liquid-cooled build falls into one of two camps, based around the tubing used. There are two types that the enthusiast community takes advantage of right now: hard tubing and soft. Each has its own advantages and disadvantages. Soft tubing, the most common type, is usually a form of flexible PVC, capable of being cut to length with relative ease. Available in many colors, it’s commonly found with an outer diameter of 13, 16, or 19mm, and can be used with a barb, or specially designed compression fittings, which are a combination of a barb, with an o-ring and compression cap on top.
Its successor—which is arguably more difficult to work with—is hard tubing, also known as hardline, an umbrella term for everything from acrylic, to copper, even glass tubes.…
