Watercool HEATKILLER RAD 420-S Black (24125)

A slim 420 mm radiator for three 140 mm fans, 30 mm thick, in black. Watercool's HEATKILLER RAD 420-S Black is a mesh radiator with a brass pre-chamber and brass cooling channels, copper fins, black side panels and two G1/4 ports.

Properties

• Fans: 3x 140 mm, up to 6 in push-pull, M3 screws
• Size: 460 x 140 x 30 mm
• Thickness: 30 mm (S series)
• Ports: 2x G1/4
• Material: Brass pre-chamber and channels, copper fins
• Weight: 1.10 kg

The HEATKILLER RAD series in 140 mm sizes

Watercool has now expanded the high-quality radiators of the HEATKILLER RAD series to include 280 and 420 mm versions. For both, it chose to rely on the popular slim format (S), with a height of 30 mm. In addition to the optimized performance, Watercool says the radiators are characterized by their compact dimensions and by the high-quality workmanship typical of Watercool. The smaller sibling for two fans is the HEATKILLER RAD 280-S WHITE.

Finishing and quality control in Germany

Watercool says it worked in collaboration with a well-known manufacturer from Asia, and that together they have succeeded in creating a powerful network (mesh) radiator with a unique look. The cooling cores are manufactured strictly according to Watercool's specifications. The radiator housing is produced directly on site in Waren, which means the finishing and quality control ultimately take place in Germany.

High cooling performance across the entire speed range

The aim of the development was to produce competitive radiators with a wide performance range. Accordingly, Watercool says the HEATKILLER RAD shows very good cooling performance even with slowly rotating fans, and that this scales excellently as the speed increases. For maximum cooling performance it can of course also be used in push/pull mode, with fans on both sides.

The best raw materials used

Only high quality raw materials are used as the basis for this radiator. The pre-chamber and the cooling channels are made of brass, and the cooling fins are made of copper. The side panels are laser-cut from 1 mm thick steel plates or stainless steel, and subsequently brushed or powder-coated in black or white, depending on the finish; here they are black. The front sides are made of brushed stainless steel and significantly contribute to the exclusive look.

Easy integration into the cooling circuit

Integration into the circuit is done with two standard G1/4 inch threads. The connections required for this are not included in the scope of delivery, so add two fittings for your tube. Watercool says the manufactured thread passages ensure easy screwing in and high strength. The small width of just 140 mm ensures maximum flexibility in where it goes, and it takes standard 140 mm fans.

Technical data: HEATKILLER RAD-S 420

• Dimensions: 460 x 140 x 30 mm
• Weight: 1.10 kg
• Color: Black
• Connections: 2 x G1/4 thread
• Fan compatibility: 140 mm fans, up to 6 x 140 mm fan (push-pull)
• Radiator mounting: M3

Notes

• Screws used for the fans may not reach deeper than 5 mm into the radiator; longer screws might damage the pipes. The mounting material Watercool shows is M3x30 and M3x5 screws, 4 per fan.
• The side panels can be removed for maintenance.
• As coolant, Watercool recommends demineralized or deionized (distilled) water with a suitable corrosion inhibitor.

In the box

• 1x Watercool HEATKILLER RAD 420-S Black