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Copper radiator with brass end tanks, 40 mm thick, dual-row tubes and dense fins

Thermaltake

Thermaltake CL-W281-CU00BL-A Pacific CLD 240 Copper Radiator 40mm diy cooling

SKU CH-7VD7-SKAHH MPN CL-W281-CU00BL-A

A 40 mm thick copper radiator with dual-row tubes and 25 FPI micro-fins for high-efficiency liquid cooling loops

  • TypeRadiator
  • Radiator Size285.4(L) x 119(W) x 40(H) mm
  • Radiator MaterialCopper, Brass and Stainless Steel
  • SpecificationMaterial: Copper, Brass and Stainless Steel FPI: 25 Tube: 12
  • FeaturesHigh-Density Double Micro-Fin High-Quality Copper Radiator D

Series 40mm Thick (Double Fin)

Option 240mm

Struck-through versions exist but are not stocked here.

  • High-density double micro-fin design with 25 FPI maximises surface area for heat transfer
  • 40 mm thick copper radiator with dual-row 12-set tubes enables efficient heat dissipation
  • Brass tank and copper construction ensure durable thermal performance in custom loops
  • Five G 1/4 ports provide flexible plumbing options for complex loop layouts
  • Tt LCS certified for compatibility with extreme liquid-cooling configurations

Pacific CLD 240 Copper Radiator

The Thermaltake Pacific CLD 240 is a copper radiator built for custom liquid-cooling loops. It targets enthusiasts assembling high-performance systems who need reliable heat rejection from overclocked components. The 40 mm thick core uses copper, brass and stainless steel construction. It is not suited for builders who prefer all-in-one coolers or who lack space for a 285.4 mm long radiator.

Thermals noise and power draw

The radiator itself has no moving parts, so it adds no noise or power draw to the loop. Its 25 FPI high-density double micro-fin structure and dual-row 12-set copper tubes with a brass tank are engineered for optimised heat dissipation. Performance scales with the static pressure of the paired 120 mm fans, which are not included. Tt LCS certification confirms compatibility with extreme liquid-cooling configurations.

Build integration

The unit measures 285.4 mm long, 119 mm wide and 40 mm thick, requiring matching case clearance for a 240 mm fan mount. Five G 1/4 ports provide flexible routing options for complex loop layouts. Brass tank construction and reflow soldering ensure durability under pressure. Buyers who need more than five ports or a different port thread standard will need additional fittings or a different radiator.

Highlights

  • High-density double micro-fin design with 25 FPI maximises surface area for heat transfer
  • 40 mm thick copper radiator with dual-row 12-set tubes enables efficient heat dissipation
  • Brass tank and copper construction ensure durable thermal performance in custom loops
  • Five G 1/4 ports provide flexible plumbing options for complex loop layouts
  • Tt LCS certified for compatibility with extreme liquid-cooling configurations

Specifications

BrandThermaltake
SeriesPacific CLD 240 Radiator
ModelCL-W281-CU00BL-A
TypeRadiator
Radiator Size285.4(L) x 119(W) x 40(H) mm
Radiator MaterialCopper, Brass and Stainless Steel
SpecificationMaterial: Copper, Brass and Stainless Steel
FPI: 25
Tube: 12 set
Port Thread: G 1/4
Port QTY: 5
FeaturesHigh-Density Double Micro-Fin
High-Quality Copper Radiator Design
Optimized Heat Dissipation & Dual-Row Copper Tubes with a Brass Tank
Remarkable Expansion
Tt LCS Certified
Shipping weight1.23 kg
Package size345 × 155 × 76 mm

Other versions of this model

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Questions about this item

How do I install the 285.4 mm long radiator in my case, and what step is often missed?

Mount the radiator using the 120 mm fan screw holes, then thread G 1/4 fittings into all five ports; the step most builders miss is plugging the unused ports before pressure testing.

What maintenance will the copper and brass radiator need over time?

Flush the loop annually with distilled water and a non-corrosive cleaner to prevent oxidation inside the 12 dual-row copper tubes and brass tank.

What limit appears first when the 25 FPI fin stack runs under sustained load?

Airflow restriction across the dense 25 fins per inch becomes the bottleneck, so high-static-pressure 120 mm fans are required to maintain thermal performance.

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