
Best selling Water cooling radiators
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1. Hailea Ultra Titan 500 HC300
This continuous flow cooler essentially replaces the radiator, as the water is regulated down to a temperature set by you. Temperatures of up to 4°C are possible, but please note that condensation can form due to the temperature difference. The temperature can be set in single steps up to 28° C via the display. Appropriate insulation accessories (for hose and CPU) are also available. Alternatively, the chiller can be set to a value just below room temperature to avoid the problem of condensation.
Due to the low water temperatures, unimagined possibilities for overclocking are given. The service life of your components is increased many times over. Furthermore this system is also interesting for No Noise applications, because the chiller can be placed in another room. We recommend integrating the chiller as an additional cold source in a system next to an existing radiator. So you can switch off the normal radiator as needed (overclock / benchmark / midsummer etc) and the chiller will take over the cooling.
Which aquarium size does my continuous flow cooler cool?
The manufacturer's information is as follows:
Model / litre specification:
HC-130 / 50-100L
HC-150 / 50-200L
HC-250 / 100-300L
HC-300 / 100-400L
HC-500 / 200-800L
HC-1000 / 300-1000L
HC-2000 / 400-1500L
Here we would like to point out that the manufacturer's specifications were created under optimal conditions. For example, the temperature behaviour can vary considerably due to the insulation of the pool, the radiation of the lamps or the sunlight. Therefore we recommend to choose a larger model when reaching the upper limit of the litre values.
Note on compatibility: The chiller is supplied with connections for 1 inch hose (inner diameter approx. 19 to 20mm). The delivery includes 1 pair of straight and 1 pair of 90° angled connectors. To use the Chiller with standard connections we recommend art. 37018 (for G1/4) and 37019 (for G3/8).

2. Thermaltake Pacific CL420
The Pacific CL420 radiator is a powerful 420mm copper cooler featuring a high-density copper fin design and brass tank. The cooler is designed for 140mm high-pressure fans and is made from high-quality materials that provide exceptional performance and unmatched reliability. The unique stainless steel side panels ensure durability while reducing the weight of the cooler. Integrated G1/4" threads facilitate installation, while rigid connections ensure leak-proof measures are in place. With ideal mounting, assembly, and flow adjustment, the Pacific CL420 cooler meets your cooling needs in every way.

3. Jonsbo TH-360 AiO Wasserkühlung, ARGB, Display - 360mm, schwarz
The Jonsbo TH-360 Black water cooler is a high-performance liquid cooling solution designed for computer systems requiring efficient thermal management. This water cooling system features a 360 mm radiator with dimensions of 397 mm in length, 120 mm in width, and 27 mm in height, providing substantial surface area for effective heat dissipation. The radiator is constructed from aluminum with a matte black finish that complements modern computer chassis designs. The integrated pump operates at a maximum speed of 2800 RPM with a flow rate of approximately 1.3 L per minute, ensuring consistent coolant circulation throughout the system. Three 120 mm PWM fans are included, each capable of operating between 500 and 1800 RPM with a maximum airflow of 56.5 CFM and static pressure of 2.0 mm H₂O. These fans produce noise levels ranging from 18 to 30 dBA depending on operational speed, balancing cooling performance with acoustic considerations. The water block features a copper cold plate with micro-channel technology for optimal heat transfer from the processor. This cooling solution supports modern CPU sockets including Intel LGA 1700, 1200, 115x, and AMD AM4, AM5 platforms. The tubing measures 400 mm in length with an outer diameter of 12 mm and is constructed from durable, flexible materials resistant to kinking and degradation. The coolant reservoir has a capacity of 170 ml and utilizes a transparent design that allows visual monitoring of fluid levels. Installation hardware includes mounting brackets, screws, thermal paste, and comprehensive instructions for straightforward assembly. The system operates within a temperature range of 0 to 60 °C and is rated for continuous operation with minimal maintenance requirements. This water cooling unit represents a reliable thermal management solution for computer enthusiasts and professionals seeking consistent cooling performance for demanding computing applications.

Jonsbo TH-360 AiO Wasserkühlung, ARGB, Display - 360mm, schwarz
120 mm
4. Hailea Ultra Titanium 200 HC150
This chiller essentially replaces the radiator, as it cools the water to a temperature set by you. Temperatures as low as 4 °C are possible; however, please note that condensation may occur due to the temperature difference. The temperature can be set in increments up to 28 °C via the display. Corresponding insulation accessories for hoses and the CPU are also available. Alternatively, the chiller can be set to just below room temperature to avoid the issue of condensation.
With the low water temperatures, unprecedented overclocking possibilities arise. The lifespan of your components increases significantly. Furthermore, this system is also interesting for no-noise applications, as the chiller can be placed in another room. It is recommended to integrate the chiller as an additional cooling source into a system alongside an existing radiator. This way, you can turn off the regular radiator as needed (for overclocking, benchmarking, during hot summer days, etc.), and the chiller will take over the cooling.

5. Alphacool NexXxoS XT45 Full Copper 420mm
Alphacool NexXxoS XT45 Full Copper Cooling System - Black
Product Description:
The Alphacool NexXxoS XT45 Full Copper Cooling System is made of high-quality steel, brass, and copper. It comes with 12 hexagon socket screws (M3 x 30 mm), 12 hexagon socket screws (M3 x 35 mm), and 4 threaded plugs.
Dimensions:
- Width: 14.4 cm
- Depth: 46.8 cm
- Height: 4.6 cm
- Weight: 1.892 kg
Features:
- G1/4" threads
- Compatible fan diameter: 140 mm, 420 mm
- Color: Black
- Mounting kit included.
Pro
- Good quality
- 1/4" connections on all sides and a drain at the bottom
- Processing / Quality

6. Alphacool NexXxoS ST30 Full Copper 360mm
Free space during assembly is one of the central points on which the development department of the Alphacool NexXxos ST30 360mm has concentrated. All main elements, not only the fins and channels, but also the antechambers are made of copper. This already brings an increase in performance due to the material, where other radiators fall by the wayside. The internal design is at eye level with radiators from other manufacturers and separate antechambers clearly define the path of the coolant. A high flow rate increases the cooling capacity in the complete system. The flat end chamber of the NexXxos ST30 360mm also allows more space during installation, as the overall length is thus smaller.
Pro
- Good cooling capacity
- Good workmanship
- Good quality
Contra
- Cooling fins very susceptible
- Poor packaging

7. Barrow Dabel-20a Radiator 240 mm - white
Copper radiator for optimal heat dissipation. Durable black finish for long-lasting performance. 240 mm radiator with high flow rates.
The Barrow Dabel-20a combines functionality and design. The radiators in this series have been developed with a focus on highly efficient cooling. The design allows for maximum airflow through thin copper fins, ensuring excellent heat dissipation.
The simple design of the radiator makes it easy to integrate visually into almost any build. The surface is white, making it particularly suitable for use in light builds or to add a color accent.
Connection to the water cooling system is made via two G1/4-inch ports. However, it is essential to use the same materials to prevent corrosion.
Technical details:
- Dimensions: 274.1 x 20 x 120 mm (W x H x D)
- Weight: 395.6 g
- Color: White
- Material: Copper
- Thread: 2x G1/4 inch
- Capacity: 117 ml
- Included: 1x Barrow Dabel-20a Radiator - 240mm, screw set, 1x hexagon wrench, 8x sealing rings
Note: Caution! Components of a water cooling system should only be used with the same materials to avoid corrosion and damage.

8. Barrow Dabel-40a Radiator 360 mm - black
Copper radiator for optimal heat dissipation. Durable black finish for long-lasting performance. 360 mm large radiator. High flow rates.
Copper radiator with excellent cooling performance. The Barrow Dabel-40a combines functionality and design. The radiators in this series are designed for very efficient cooling. The design allows for maximum airflow through thin copper fins, ensuring very good heat dissipation.
Sleek design and easy integration into the loop. The simple design of the radiator allows it to be visually integrated into almost any build. The surface is black and offers an appealing matte finish.
Connection to the water cooling system is made via two G1/4-inch ports. However, it is essential to use the same materials to prevent corrosion.
Technical details:
- Dimensions: 125.4 x 40.1 x 397 mm (W x H x D)
- Color: Black
- Capacity: 340 ml
- Material: Copper
- Thread: 2x G1/4 inch
- Delivery includes: 1x Barrow Dabel-40a radiator 360 mm
Note: Caution! Components of a water cooling system should only be used with the same materials to prevent corrosion and damage.

9. Alphacool 14244 Computer cooling system part/accessories radiator
Alphacool NexXxoS XT45 Full Copper X-Flow 140mm Cooling System
Product Description:
The Alphacool NexXxoS XT45 Full Copper X-Flow 140mm cooling system is available in black. It is made of steel, brass, and copper, with dimensions of 14.4 cm x 19.5 cm x 4.5 cm. The weight is 843 g.
Features:
- Product Type: Cooling System
- Compatible Fan Diameter: 140 mm
- M3 Hole
Miscellaneous:
- Mounting kit included.

10. Hailea Controller & Display Spare Parts for Ultra Titan 300 (HC250=265Watt cooling power...
Replacement control unit for Hailea Ultra Titan 300 (HC250).

Hailea Controller & Display Spare Parts for Ultra Titan 300 (HC250=265Watt cooling power...