Hose Type and Size Explained

Flexible Tubing

Flexible tubing, also known as soft tubing, is the more forgiving option for beginners and those looking for an easier installation process. It is typically made from materials like PVC (polyvinyl chloride), EPDM rubber, or silicone. This type of tubing is flexible enough to bend around tight corners, making it ideal for small cases or intricate loop designs without the need for angled fittings. It is generally easier to work with because it can be cut to size and easily fitted over barbed or compression fittings.

Sizes of Flexible Tubing

Flexible tubing comes in various sizes, primarily defined by the inner diameter (ID) and outer diameter (OD). The ID refers to the width of the hole where the coolant flows, while the OD measures the outside of the tubing, which also affects its compatibility with different fittings.

• 5/16" ID x 3/8" OD (8mm x 10mm): This is a really small tubing, usually uses in tiny cases or servers where space is very limited.
• 3/8" ID x 1/2" OD (10mm x 13mm): This is one of the most common sizes, offering a balance between flexibility and adequate coolant flow.
• 3/8" ID x 5/8" OD (10mm x 16mm): This is one of the most popular sizes, due to the thick look of the tube, along with a thick side wall, allowing for great bend radius's
• 7/16" ID x 5/8" OD (11mm x 16mm): This size is slightly thicker, providing a more substantial look and feel while maintaining flexibility.
• 1/2" ID x 3/4" OD (13mm x 19mm): This is a thicker tubing option, often used for high-flow systems. It is a bit more rigid compared to thinner sizes but provides maximum coolant flow.

Hard Tubing

Hard tubing, also called rigid tubing, is popular for its sleek clean lines, polished look and durability. Made from materials like Acrylic, PETG (polyethylene terephthalate glycol), Copper, Stainless steel or Glass, hard tubing provides a modern, clean appearance in custom builds. Unlike flexible tubing, hard tubing must be precisely cut and bent using heat to fit around components. While more challenging to work with, it offers superior aesthetic appeal, especially in high-end custom loops. Hard tubing also tends to be more durable and resistant to wear, which makes it a popular choice for enthusiasts who want a long-lasting and visually stunning system.

Sizes of Hard Tubing

Hard tubing is typically measured by outer diameter (OD), as the wall thickness is uniform and plays a smaller role in flow rate than it does with flexible tubing. Common sizes include:

• 12mm OD: This size is popular for smaller builds where space is limited, providing a compact and minimalist appearance.
• 14mm OD: The most popular size we sell, 14mm OD tubing offers a balance between compactness and visual impact. It’s a popular choice for users looking for a clean aesthetic without overly large tubing.
• 16mm OD: This thicker tubing size creates a bold visual impact in custom loops. It is often used in larger builds where the size of the case allows for the extra space needed for larger tubing runs.

Choosing Between Flexible and Hard Tubing

The choice between flexible and hard tubing comes down to the user’s goals and experience level. Flexible tubing is easier to install, less expensive, and forgiving for first-time builders, but it can become discolored over time and lacks the sleek appearance of hard tubing.

Hard tubing, on the other hand, is more challenging to work with due to the need for precise cutting and bending, but it results in a cleaner, more professional look and is more durable in the long run.

Both types of tubing are available in various colors, including clear, opaque, and UV-reactive finishes, allowing builders to further customize the aesthetic of their loop. Ultimately, choosing the right tubing size and type depends on the builder's comfort with installation and the desired visual effect.