Barrow adapter straight G1/4 inch male to G1/4 inch male, 5 mm port, gold (TB2D-MINI01 go)

The Barrow adapter straight G1/4" male to G1/4" male with a 5 mm port in gold is a compact fitting designed for liquid-cooling systems that use standard G1/4" threaded connections. It converts between two male G1/4" threads while integrating a small-diameter 5 mm service port, enabling connection, extension or reconfiguration of fittings, tubing, and cooling blocks without changing thread standards. The gold finish provides corrosion resistance and a uniform appearance when matched with compatible components.

Advantages

This straight adapter allows connection between two G1/4" male-threaded components while adding a 5 mm port for service, filling, or pressure measurement. Its compact, single-piece design reduces leak points and simplifies routing inside constrained spaces. The gold surface finish improves resistance to oxidation and helps maintain a consistent aesthetic with metallic cooling hardware. The adapter is compatible with standard G1/4" fittings and is suitable for both assembly and retrofitting tasks in custom liquid-cooling loops.

Suitable for

• Joining or extending G1/4" threaded fittings in PC liquid-cooling loops
• Adding a small-diameter service, fill, or bleed port to an existing line
• Reconfiguring tubing and block connections where space is limited
• Maintenance tasks requiring temporary access for pressure checks or filling

Key specifications

• Thread type: G1/4" male to G1/4" male
• Service port diameter: 5 mm
• Orientation: straight inline adapter
• Finish: gold plated/coated surface
• Compatibility: standard G1/4" liquid-cooling fittings and blocks
• Typical use environment: PC water-cooling assemblies

How to use

Install the adapter by threading each G1/4" male end into the corresponding female G1/4" fitting or port until hand-tight, then tighten further with an appropriate wrench if required to ensure a leak-free joint. Apply thread sealant or PTFE tape according to the fitting manufacturer's guidance if desired for additional sealing. Use the 5 mm port for attaching a small-diameter hose, a bleed valve, or a pressure/temperature sensor as needed; ensure any hose or accessory fits the 5 mm opening securely and is clamped or sealed to prevent leaks. Check the assembled loop for leaks after filling and before full operation.

Recommendations

For reliable performance, use compatible G1/4" female fittings and appropriate sealing materials. Avoid over-tightening metal threads to prevent damage to threads or mating components. When using the 5 mm port for filling or bleeding, secure the hose and verify connections under low pressure first. Regularly inspect the adapter and surrounding fittings for signs of wear or corrosion, especially in systems using additives or mixed-metal components.