Adapter fitting BitsPower Multi-Link G1/4 inch male to 12mm hardtube, straight, glossy black

BitsPower Multi-Link straight adapter with a G1/4" male thread to 12mm hardtube connection provides a precise, rigid interface for custom PC liquid-cooling loops. Finished in glossy black, this straight adapter is engineered to connect standard G1/4" threaded components to 12mm outer diameter hard tubing, enabling compact routing and secure joints in high-performance or space-constrained builds.

Advantages

The adapter offers a solid metal construction and a smooth glossy black finish for corrosion resistance and consistent appearance across fittings. Its straight design minimizes bends and maintains predictable flow characteristics, while the G1/4" male thread ensures compatibility with a wide range of water-cooling blocks, radiators and accessories. The 12mm hardtube interface is sized to create a snug, leak-resistant fit with rigid tubing, improving mechanical stability in tight layouts.

Suitable for

• Custom PC water-cooling loops using 12mm (OD) hard tubing
• Compact or tightly routed liquid-cooling builds
• Connections between radiators, pumps, reservoirs and water blocks with G1/4" threads
• Professional or enthusiast systems requiring rigid, stable fittings

Key specifications

• Thread type: G1/4" male
• Hardtube outer diameter: 12 mm
• Orientation: straight inline adapter
• Finish: glossy black
• Material: metal alloy suitable for liquid-cooling fittings

How to use

Install the adapter by threading the G1/4" male end into the corresponding G1/4" female port on the component until hand-tight, then secure with an appropriate wrench if required, taking care not to overtighten. Prepare the 12mm hardtube by cutting square and deburring the end, then insert the tube into the adapter’s hardtube seat according to the fitting system used. Verify alignment and ensure a firm mechanical engagement; perform a pressure or leak test before powering the system.

Recommendations

Use compatible tubing and follow standard water-cooling assembly practices: confirm tube outer diameter is 12 mm, remove burrs, apply appropriate seals or compression sleeves if needed, and perform a full leak test with the loop filled and the pump running externally before normal operation.