Adapter G1/4" male to G1/4" male, Barrow TB2D-MINI01 b, 5 mm connection, black

Barrow TB2D-MINI01 b is a straight male-to-male adapter with G1/4" threads and an integrated 5 mm connection in a black finish. Engineered for liquid cooling and custom plumbing, this compact adapter joins two G1/4" threaded ports while permitting a 5 mm hose or rigid tube to be attached directly. Its small form factor makes it suitable where space is limited or where a low-profile connection is required in PC cooling loops and other fluid-routing assemblies.

Advantages

The adapter offers a compact, low-profile means to connect two G1/4" ports while providing a secure 5 mm interface. Constructed to fit standard G1/4" fittings, it simplifies transitions between threaded components and 5 mm tubing without requiring additional couplings. The black finish resists visible wear and integrates visually with dark hardware and tubing setups.

Suitable for

• Compact PC liquid cooling loops where space is constrained
• DIY cooling and custom plumbing projects
• Connecting threaded components to 5 mm hose or rigid tubing
• Interlinking pumps, radiators, reservoirs, and water blocks with G1/4" ports

Key specifications

• Thread standard: G1/4" male to G1/4" male
• Tube/hose interface diameter: 5 mm
• Orientation: straight inline adapter
• Finish/color: black
• Application: liquid cooling and plumbing systems

How to use

Install the adapter by threading each G1/4" male end into the corresponding female G1/4" ports until hand-tight, then secure with a wrench if required to ensure a leak-free seal. Attach a 5 mm hose or rigid tube onto the 5 mm connection; if using flexible tubing, use an appropriate clamp or compression fitting to prevent slipping. Verify alignment to avoid strain on tubing and threaded fittings before filling the system with coolant.

Usage recommendations

Prior to pressurizing or filling the loop, perform a leak test with distilled water or recommended test fluid. Use compatible tubing materials and clamps for 5 mm connections, and avoid overtightening threaded joints to prevent damage to fittings. Regularly inspect connections during initial operation and maintenance intervals.