Singularity Protium Triple Port Cap Reservoir Lid RBAC-000-60

Replacement cap designed for Singularity Protium series reservoirs: Triple Port Cap RBAC-000-60 is a lid for coolant expansion reservoirs with a three-port layout that provides secure sealing and ports for tubing or fittings. This cap fits Protium-style reservoir necks used in custom PC water-cooling loops and enables easy routing of inlet, outlet and fill lines while maintaining a compact profile. The component is intended for users who need a compatible spare or upgrade cap to integrate fittings and tubing cleanly into a Protium reservoir installation.

Advantages

The triple-port design allows simultaneous connection of multiple lines without sacrificing a reliable seal. Precision machining ensures consistent fit on compatible Protium reservoir necks and helps prevent leaks under normal operating pressures. The cap supports common tubing and fitting sizes used in custom loops and simplifies plumbing organization by centralizing connections at the reservoir. The form factor is compact and engineered for tidy cable and tube routing within constrained case layouts.

Suitable for

• Custom PC water-cooling loops using Singularity Protium reservoirs
• Systems requiring a three-port top for inlet, outlet and fill/drain lines
• Upgrades or replacement of a damaged or missing reservoir cap
• Tidying and consolidating tubing and fittings in confined case interiors

Key specifications

• Configuration: three-port top cap for expansion reservoir
• Compatibility: designed for Protium-series reservoir necks and form factor
• Function: provides sealed ports for tubing or threaded fittings
• Material and finish: precision-machined component suitable for coolant contact (refer to manufacturer for exact material details)
• Mounting: screw-on or press-fit style compatible with Protium reservoir opening

How to use

Verify the cap matches the reservoir neck and orientation before installation. Remove any existing lid, clean the sealing surfaces, and align the cap so each port faces the intended tubing or fitting direction. Install appropriate fittings or tubing into the ports, tightening to the manufacturer's recommended torque for the chosen fittings. After connections are secure, press or screw the cap into place and perform a pressure or leak test on the loop according to standard water-cooling procedures.

Recommendations

Use compatible fittings and tubing sizes to ensure a proper seal; inspect O-rings and sealing surfaces regularly and replace them if worn. Follow coolant manufacturer guidance and perform a controlled leak test after installation. Avoid overtightening metal fittings to prevent damage to the cap or reservoir neck.