XSPC transparent FLX Tube 19/13 mm, 2 m — cooling loop tubing

XSPC transparent FLX Tube 19/13 mm, 2 m is a soft, clear tubing intended for custom liquid-cooling loops in desktop PCs and similar systems. With an outer diameter of 19 mm and an inner diameter of 13 mm, this 2 metre length of tubing provides visible coolant flow and flexible routing between components such as water blocks, radiators and reservoirs. The product is compatible with fittings designed for 19/13 mm tubing and is intended for use in both hobbyist and professional cooling assemblies where clear, soft tubing is preferred.

Advantages

The tubing’s transparent material allows easy visual inspection of coolant colour and flow without disassembly. Its soft, flexible construction simplifies bending and routing in tight cases or complex loops while maintaining a consistent inner diameter for predictable flow characteristics. Supplied as a two-metre length, it is convenient for short to medium loop segments and for testing layouts before final cut-to-fit installation.

Suitable for

• Custom PC liquid-cooling loops connecting water blocks, radiators and reservoirs
• Retrofit or replacement of existing soft tubing in desktop cooling systems
• Prototype or test loops where visible flow monitoring is required

Key specifications

• Material: transparent soft tubing (clear)
• Inner diameter: 13 mm
• Outer diameter: 19 mm
• Length: 2 metres
• Flexibility: soft, bendable for tight routing

How to use

Measure and cut the tubing to the required lengths using a sharp tube cutter or a fine-toothed saw to ensure a square, clean cut. Slide the tubing over compatible 19/13 mm fittings until it seats fully; use appropriate clamps or compression fittings where required to secure connections and prevent leaks. Flush the loop and inspect connections visually through the transparent tubing during initial fill and run-in to confirm there are no air pockets or leaks.

Usage recommendations

Before installation, verify compatibility of your fittings with 19/13 mm soft tubing and plan routing to minimise sharp bends. Use coolant and corrosion inhibitors recommended for PC liquid-cooling; perform periodic visual inspection through the transparent tube for sediment, discolouration or microbubbles and replace tubing if it becomes brittle or discoloured.