Radiator Watercool 24120 — brass/copper/stainless steel, 158×120×48 mm, 120 mm fan

Watercool 24120 radiator for PC liquid cooling systems, constructed from brass, copper and stainless steel. With dimensions of 158×120×48 mm and designed to accommodate a 120 mm fan, this single-unit radiator serves as a replacement or upgrade component for custom loops and chassis cooling. It transfers heat from the coolant to the airflow and has an approximate weight of 0.79–0.9 kg. The compact footprint and 48 mm thickness make it suitable for tighter builds where a thicker high-performance radiator is required.

Advantages

The radiator combines brass pre-chamber and cooling channels with copper cooling fins and stainless steel exterior elements for durable heat exchange and a refined appearance. Its 48 mm thickness is aimed at delivering improved thermal performance across a wide fan speed range, scaling well from low to high RPM. Standard G1/4" thread connections allow straightforward integration into common water-cooling loops while the 120 mm fan compatibility maintains broad mounting flexibility.

Suitable for

• Custom PC liquid cooling loops as a replacement or upgrade radiator
• Compact or mid-size chassis where a 120 mm fan radiator fits
• Cooling single components or small loops requiring a 120 mm fan

Key specifications

• Material: brass (pre-chamber/cooling channels), copper (fins), stainless steel (external panels)
• Dimensions: 158 × 120 × 48 mm
• Fan support: 120 mm fan
• Connection type: standard G1/4" threads (fittings not included)
• Weight: approximately 0.79–0.9 kg
• Colour: stainless steel finish

How to use

Mount the radiator in the chosen chassis location or radiator bracket that supports a 120 mm fan. Install a compatible 120 mm fan in push, pull, or push/pull configuration according to your cooling goals. Connect the radiator to the rest of the loop using appropriate G1/4" fittings and tubing; ensure all connections are tightened and leak-tested before powering the system. Position the radiator to allow adequate airflow and avoid sharp bends in tubing that could restrict flow.

Recommendations

For balanced noise and cooling performance, begin testing with medium-speed fan settings and monitor coolant and component temperatures. Use corrosion-inhibiting coolant compatible with the mixed-metal construction (brass, copper, stainless steel) and perform regular inspections for flow and leak integrity. When higher cooling capacity is required, consider push/pull fan configurations and ensure the mounting area provides sufficient intake or exhaust airflow.