Fitting for computer cooling system ek water blocks — brass satin steel/titanium finish 20.8 mm height 16.5 mm diameter

The EK-Quantum Torque Micro Rotary 90° adapter fitting is a compact brass rotary angled fitting for PC liquid cooling loops, finished in satin Silver/Titanium. With an overall installed height of approximately 21 mm (specified as 20.8 mm in product data) and a base diameter of 16.5 mm, it provides a fully rotatable female G1/4" outlet that allows making a 90° turn in minimal space. The fitting is CNC-machined from solid brass, assembled with rubber O-rings and left unpainted on the internal surfaces to reduce potential loop contaminants. It is compatible with EK-Quantum Torque STC, HDC and Micro HDP fittings.

Advantages

The micro rotary design reduces installation height by about 10 mm compared with standard Torque 90° rotaries, enabling bends where space is limited. Precision CNC machining and satin finish offer consistent appearance and durable corrosion-resistant brass construction. Permanently assembled two-part construction with O-ring seals ensures leak-resistant operation while the rotatable joint permits precise directional alignment of the female G1/4" port.

Suitable for

• Compact PC builds with tight tubing or component clearances
• Custom water-cooling loops using G1/4" threaded ports
• Connections to EK-Quantum Torque series fittings (STC, HDC, Micro HDP)

Key specifications

• Manufacturer: ek water blocks
• Model / MPN: 3831109849699
• Material: CNC-machined solid brass
• Finish: Satin Silver / Titanium (external), internal surfaces unpainted
• Thread: male G1/4" (mounts into port), female G1/4" rotatable outlet
• Overall height (installed): ~20.8–21 mm
• Base diameter: 16.5 mm
• Centreline height of female port above mounting surface: 12.5 mm

How to use

Screw the male G1/4" thread into the desired component or port, using appropriate thread seal if required by your build. Secure the fitting at the base using a 6 mm Allen key through the opening in the top face; once tightened the outer body remains free to rotate so you can direct the female G1/4" port to the desired perpendicular direction. EK recommends using the EK-Loop Multi Allen Key for ease of installation. Ensure O-rings are seated and check for leaks after filling the loop.

Recommendations

Use the fitting in conjunction with EK-Quantum Torque series components to ensure compatibility. Avoid painting or modifying internal surfaces and tighten the base with the correct 6 mm Allen key to prevent damage to the sealing surfaces.