Corsair

Corsair CX-9059002-WW Hydro X Series 12mm Hardline Tubing

4.4 (331 reviews)

Crystal-clear PMMA hardline tubing from Corsair that resists warping under pressure for clean, professional custom cooling loops.

$28.90*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Corsair Hydro X Series XT Hardline Tubing is purpose-built for custom PC cooling enthusiasts who want their loops to look as good as they perform. Constructed from crystal-clear PMMA (polymethyl methacrylate), this 12mm outer diameter tubing offers outstanding optical clarity, letting you showcase vibrant coolant colors and monitor flow at a glance. Unlike softer tubing materials, PMMA holds its shape under pressure and resists the deformation that can occur with elevated coolant temperatures, maintaining clean lines up to its rated 60°C maximum operating temperature.

Designed within the Corsair Hydro X ecosystem, this tubing pairs seamlessly with Corsair's 12mm compression fittings, rotary adapters, and other Hydro X components for a cohesive build. Each straight length can be cut to size with a fine-toothed hacksaw and bent using a heat gun and silicone insert for custom routing. While PMMA demands more precision and care than flexible tubing or even PETG alternatives, the payoff is a rigid, glass-like finish that elevates the visual impact of any custom cooling loop.

Key Features

High quality, straight-line tubing for perfect tubing runs.

Crystal-clear PMMA tubing puts your coolant on display.

Resilient Construction that won't warp or deform under high pressure or high coolant temperatures.

Easy to cut to an ideal length for your custom cooling System using a fine-toothed hacksaw (not included).

Specifications

Brand
Corsair
Model
CX-9059002-WW
Series
Hydro X Series XT
Material
Crystal-Clear PMMA
Outer Diameter
12mm
Max Operating Temperature
60°C (coolant temperature)
Compatibility
Corsair Hydro X Series Custom Cooling Equipment

Pros & Cons

👍 Pros

  • Crystal-clear PMMA material provides excellent visibility of coolant color and flow
  • Resilient construction resists warping and deformation under high pressure and temperature
  • Straight-line tubing enables clean, professional-looking runs in custom loops
  • Standard 12mm outer diameter ensures broad compatibility with compression fittings

👎 Cons

  • PMMA is more brittle than PETG tubing, requiring more care when bending with a heat gun
  • Requires a fine-toothed hacksaw and deburring tool for cutting, which are not included
  • Hardline tubing demands more precise measurements and fitting work than flexible tubing
  • Limited to 60°C maximum coolant temperature, which may constrain extreme overclocking setups

Frequently Asked Questions

The tubing has a 12mm outer diameter, designed to work with Corsair Hydro X Series compression fittings and other compatible 12mm hardline fittings.
It is made from crystal-clear PMMA (acrylic), which provides excellent optical clarity to showcase your coolant color while maintaining structural rigidity.
The tubing is rated for a maximum operating coolant temperature of 60°C, which is well within the range of most custom cooling loops under normal conditions.
Corsair recommends using a fine-toothed hacksaw to cut the tubing to your desired length. After cutting, deburr and chamfer the edges for a clean fit into compression fittings.
While designed for the Corsair Hydro X Series ecosystem, the standard 12mm outer diameter means it will work with most third-party 12mm hardline compression fittings.