Water-cooling accessory BitsPower BP-CBWP-C04 brass black — computer cooling system part

BitsPower BP-CBWP-C04 brass black is a metal component for custom PC water-cooling loops, manufactured from high-quality brass with a carbon-black finish. Engineered as a through-hole accessory for liquid cooling systems, the part features a Hi-Flow design and comes with a sealed O-ring to ensure reliable fluid routing and leak resistance. The corrosion-resistant brass construction and RoHS compliance make it suitable for long-term use in DIY builds and maintenance of desktop cooling assemblies.

Advantages

The Hi-Flow design minimizes flow restriction in liquid cooling loops, supporting efficient coolant circulation. Brass material provides mechanical strength and corrosion resistance compared with common plastics, while the carbon-black nickel finish enhances surface durability and visual integration in black-themed builds. The included sealed O-ring improves sealing reliability at connections and the through-hole form factor supports secure mounting in panels or components.

Suitable for

• Custom PC liquid cooling loops and radiator connections
• Modular fittings and adapters in DIY water-cooling assemblies
• Replacement or upgrade of metal connectors in cooling systems
• Through-hole mounting points on reservoirs, panels or expansion brackets

Key specifications

• Material: brass with nickel carbon-black finish
• Design: Hi-Flow internal geometry
• Seal: integrated sealed O-ring for leak resistance
• Application type: through-hole mounting for water-cooling systems
• Compliance: RoHS compliant

How to use

Install the brass through-hole accessory into the designated panel or component opening, ensuring the O-ring is correctly seated to form a watertight seal. Tighten according to the recommended torque for the surrounding fittings or mounting hardware to avoid deforming the seal. Connect tubing, fittings or adapters to the part following the coolant path of the loop, then perform a pressure or leak test before powering the system. Regular inspection of seals and surfaces is recommended during maintenance.

Recommendations

Use compatible coolant and fittings to avoid galvanic corrosion; avoid mixing dissimilar metals in direct contact without appropriate isolation. During assembly, hand-tighten first and then apply controlled torque to finalise the seal. Periodically inspect the O-ring and finish for signs of wear and replace the seal if degradation is visible.