Reservoir Singularity Protium 250mm Acetal – Inline coolant reservoir for custom water cooling loops

The Singularity Protium 250mm Acetal reservoir is an inline coolant reservoir for custom PC water cooling loops. Crafted from Acetal with a 250 mm body, it provides additional fluid capacity and helps stabilize flow for pumps and radiators. The reservoir is intended for integration into desktop liquid-cooling setups to assist filling, air separation and maintaining consistent loop performance.

Advantages

The acetal construction offers chemical resistance and rigid structural stability while the cylindrical 250 mm form factor increases coolant volume without requiring excessive vertical space. Inline mounting allows flexible placement within tubing runs and reduces the need for separate fill ports. Internal flow characteristics smooth pulsations from pumps and aid bubble separation, supporting more stable cooling performance over time.

Suitable for

• Custom PC water cooling loops in desktop systems
• Setups requiring additional coolant capacity and improved flow stability
• Configurations where inline placement in tubing runs is preferred to separate reservoirs

Key specifications

• Material: Acetal (POM) reservoir body
• Length: 250 mm usable body length
• Function: Inline coolant reservoir for liquid-cooling loops
• Compatibility: Designed for standard soft or hard tubing and fittings used in custom PC loops (check connector sizes before installation)
• Purpose: Fluid reservoir, fill/bleed facilitation, and flow smoothing/air separation

How to use

Install the reservoir inline in the tubing run according to your loop layout and compatible fittings. Ensure fittings and tubing are the correct size for leak-free connections. During initial filling, position the reservoir so it can be used as a fill and bleed point; fill slowly while running the pump at low speed to remove trapped air. Periodically inspect connections and top up coolant as needed to maintain proper fluid level and loop performance.

Recommendations

Use with compatible corrosion- and algae-inhibiting coolants and follow manufacturer guidance for cleaning and maintenance. Verify all fittings are tightened to specification and test the loop for leaks before long-term operation.