RAIJINTEK ANTILA PURE R100B reservoir 172.5 mm ARGB black for custom water cooling

RAIJINTEK ANTILA PURE R100B reservoir 172.5 mm ARGB black for custom water cooling is a cylindrical fill and expansion tank designed for custom PC liquid-cooling loops. The 172.5 mm black housing integrates addressable RGB lighting to match system illumination while providing a dedicated coolant volume and a location for air separation. It is intended for desktop systems where a vertical reservoir with ARGB integration and a compact footprint is required.

Advantages

The reservoir combines corrosion-resistant materials and a transparent viewing window to monitor coolant level and flow. Integrated ARGB lighting allows synchronization with compatible motherboard and controller software for coordinated lighting effects. Its compact 172.5 mm length offers a balance between coolant capacity and installation flexibility in cases with limited space. The design simplifies filling and bleeding of the loop, and the cylindrical shape promotes air bubble separation for more stable pump operation.

Suitable for

• Custom PC water-cooling loops where a compact cylindrical reservoir is needed
• Systems requiring addressable RGB lighting synchronized with other components
• Builds that need a visible coolant level indicator and easy filling access
• Desktop configurations with limited vertical or bay space

Key specifications

• Form factor: cylindrical reservoir, 172.5 mm length
• Color: black housing with transparent viewing section
• Lighting: addressable RGB (ARGB) integrated
• Function: fill tank and expansion reservoir for liquid-cooling loops
• Mounting: designed for vertical installation in standard PC cases

How to use

Install the reservoir in a suitable vertical location inside the PC case, secure it with compatible mounting brackets or screws, and connect inlet and outlet ports to the loop tubing following the loop layout. Fill the reservoir with the selected coolant until the recommended level is reached, then run the pump at low speed to circulate fluid while monitoring for leaks and for trapped air. Adjust fittings and bleed the loop until bubbles are removed and coolant flow is stable. Configure ARGB lighting through the motherboard or compatible controller to achieve the desired illumination.

Recommendations

Use coolant formulations recommended for PC water cooling and avoid mixing incompatible additives. Regularly inspect the reservoir for discoloration, deposits or air accumulation and perform periodic maintenance to maintain coolant quality and loop performance.