Compression fittings (12/6 mm) 20 pcs — ek water blocks Pro series

Set of 20 compression fittings by ek water blocks for 12/6 mm tubing. These compression clamps are engineered to secure soft tubing in custom liquid cooling loops, holding 12 mm outer diameter and 6 mm inner diameter flexible tubes firmly to radiators, reservoirs, pumps and other cooling components. The pack is intended for DIY PC water cooling builds and maintenance, providing multiple spare clamps to replace worn or damaged fittings and to complete several connections during assembly.

Advantages

The compression fittings deliver consistent mechanical fixation for 12/6 mm soft tubing, reducing the risk of accidental disengagement and leaks. Manufactured to match common water-cooling dimensions, they simplify assembly and maintenance by offering a repeatable clamping solution. The bulk pack of 20 ensures availability of spare parts for system expansion or future servicing without the need to source individual pieces.

Suitable for

• Custom PC liquid cooling loops with 12/6 mm soft tubing
• Installing or replacing tubing connections on radiators, pumps, reservoirs and water blocks
• Maintenance tasks and leak prevention during system assembly
• Small-scale builds or multiple systems where several clamps are required

Key specifications

• Compatibility: soft tubing with 12 mm outer diameter / 6 mm inner diameter
• Quantity: 20 pieces per set
• Function: compression clamp for securing tubing to fittings and components
• Intended use environment: PC liquid cooling systems and related maintenance

How to use

Slide a compression fitting over the end of the 12/6 mm soft tubing, push the tubing fully onto the barbed or threaded component connection, then position the clamp over the junction and tighten according to the component type. For barbed fittings, ensure the tubing covers all barb ridges before compressing the clamp; for threaded fittings, seat the tubing and align the compression ring as required by the component design. Verify the connection by gently tugging the tubing and perform a pressure or leak test after filling the loop.

Recommendations

Inspect clamps regularly during maintenance and replace any that show signs of deformation, corrosion or reduced clamping force. Use clamps only with compatible 12/6 mm soft tubing and avoid over-tightening that could damage the tubing. After installation, perform a leak test for several hours before powering the system to detect potential issues early.