Cooling System Accessory BitsPower BP-MBWP-C11J — Brass Construction, Black Finish

BitsPower BP-MBWP-C11J is a brass accessory for PC liquid-cooling loops, finished in deep black. Engineered for Hi-Flow performance and compatibility with soft tubing having an inner diameter of 8 mm and an outer diameter of 11 mm, this fitting combines a durable brass construction with an electroplated black surface that resists corrosion and integrates with dark-themed builds. The hiding O-ring design helps maintain a neat appearance while ensuring a secure, leak-resistant connection in water-cooling circuits.

Advantages

The brass construction provides mechanical strength and long-term corrosion resistance compared with non-metal alternatives. The high-quality E-plated black finish offers consistent aesthetics and additional surface protection. The Hi-Flow design reduces hydraulic resistance in the loop, supporting stable coolant circulation. A concealed O-ring improves the visual profile of the fitting while maintaining effective sealing for tube ID 8 mm / OD 11 mm applications. RoHS compliance ensures the component meets common environmental material standards.

Suitable for

• Custom PC liquid-cooling loops requiring fittings for 8 mm ID / 11 mm OD tubing
• Systems that prioritize a black aesthetic and metal components
• High-flow radiator and pump connections where reduced resistance is beneficial
• Upgrading plastic fittings to more durable brass alternatives

Key specifications

• Material: brass
• Finish: deep black E-plated surface
• Design: Hi-Flow internal profile
• Tube compatibility: inner diameter 8 mm, outer diameter 11 mm
• Sealing: concealed O-ring design for leak resistance
• Standards: RoHS compliant

How to use

Ensure the tubing dimensions match the fitting specification (8 mm ID / 11 mm OD) before installation. Slide the correct-length soft tube onto the fitting until it seats against the concealed O-ring; verify the O-ring is clean and undamaged. Secure any additional clamping hardware if your loop design requires it. Install the fitting into the loop at the intended connection point, then perform a pressure or leak test with the system powered off and pumps running to confirm a watertight seal before full operation.

Recommendations

Inspect O-rings periodically and replace if signs of wear or deformation are present. Use compatible coolant and cleaning agents to avoid surface damage to the E-plated finish. When assembling or disassembling, avoid excessive twisting that can stress tubing or seal surfaces.