
Best selling Water cooling radiators
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Hailea Continuous cooler Ultra Titan 500 - White Special Edition
The Ultra Titan 500 flow cooler from Hailea is a highly advanced cooling device specifically designed for water cooling systems and aquariums. Featuring an innovative titanium heat exchanger, this model offers excellent cooling performance and is ideal for applications such as cold water therapy and cryotherapy. The White Special Edition is characterized by a modern design and the use of durable materials that ensure a longer lifespan. Additionally, the cooler is suitable for continuous operation and operates at a low noise level, making it a practical choice for various environments. The ability to reach water temperatures as low as 4 °C makes it particularly versatile. The flow cooler comes with a comprehensive accessory package that facilitates installation and enables optimal use.
- Titanium heat exchanger for optimal cooling performance
- Low noise level, ideal for continuous operation
- Suitable for cold water therapy and cryotherapy
- Reaches water temperatures as low as 4 °C
- Extensive accessories for easy installation.

2. EKWB EK-Quantum Surface S240 Dual Fan Radiator
The EK-Quantum Surface S240 Dual Fan Radiator from EK Water Blocks is a highly advanced solution for water cooling, characterized by its efficient heat dissipation and thoughtful design. With a copper core and a fin density of 20 FPI, this radiator offers an excellent balance between heat exchange and air resistance. Despite its compact design of only 30 mm thickness, it enables effective cooling suitable for various applications. The construction includes cooling tubes that optimize water flow, further enhancing cooling performance. The radiator is designed for easy disassembly, allowing modding enthusiasts to make custom adjustments and tailor the system to their preferences. The use of high-quality materials ensures durability and reliability, while the robust coating provides additional protection.
- Copper core for optimal heat dissipation
- 20 FPI fin density for efficient heat exchange
- Easy disassembly for modding adjustments
- Cooling tubes for unobstructed water flow
- Durable coating for increased longevity.

EKWB EK-Quantum Surface S240 Dual Fan Radiator
120 mm
3. Alphacool NexXxoS ST30 Full Copper 560mm
Alphacool NexXxoS ST30 Full Copper 560mm Cooling System
Short Info:
- Product Type: Cooling System
- Manufacturer: Alphacool
- Manufacturer Art. No: 14199
- EAN/UPC: 4250197141994
Product Description:
The Alphacool NexXxoS ST30 Full Copper 560mm Cooling System is designed for efficient cooling performance.
Package Contents:
- 16 hexagon socket screws M3 x 30 mm
- 16 hexagon socket screws M3 x 35 mm
- 16 hexagon socket screws M3 x 30 mm
Specifications:
- Colour: Black
- Product Material: Steel, Brass, Copper
- Dimensions (width x depth x height): 14.4 cm x 59.9 cm x 3 cm
- Weight: 1.49 kg
- Functions: 2 x 1/4 thread
- Compatible Fan Diameter: 140 mm
- Miscellaneous: Mounting kit supplied
Features:
- 2 x 1/4 thread.

Alphacool NexXxoS ST30 Full Copper 560mm
140 mm
4. Hailea Ultra Titanium 150 HC130
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 the 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 available. The service life of your components is significantly increased. 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 alongside an existing radiator. This way, you can switch off the normal radiator as needed (for overclocking, benchmarking, or during midsummer) 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 behavior can vary considerably due to the insulation of the pool, the radiation of the lamps, or sunlight. Therefore, we recommend choosing 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 approximately 19 to 20mm). The delivery includes one pair of straight and one pair of 90° angled connectors. To use the chiller with standard connections, we recommend art. 37018 (for G1/4) and 37019 (for G3/8).

5. Corsair NAUTILUS 240 ARGB White, 240mm Radiator, Liquid CPU Cooler
The Corsair Nautilus 240 RS ARGB is a liquid cooling system for processors that enhances thermal performance while keeping noise levels low. Equipped with two 120mm ARGB fans with a rotation speed of 2100 RPM, this cooling system delivers an efficient airflow of 74.4 CFM, ensuring optimal cooling for demanding tasks. Its advanced features, such as support for Pulse Width Modulation (PWM) and Air-Guide technology, provide reliable performance and allow customizable lighting effects through the Corsair iCUE software.

Corsair NAUTILUS 240 ARGB White, 240mm Radiator, Liquid CPU Cooler
120 mm
6. Alphacool Radiator screw set, M3 x 30 mm, M3 x 5 mm, 12 pieces
The set consists of 12 screws for mounting the radiator in the housing and 12 screws for mounting the fans on the radiator. The delivery includes 12 M3x30mm fan screws and 12 M3x5mm radiator screws.

7. Watercool Heatkiller RAD 360-S Radiator - Stainless Steel
360 mm radiator with 30 mm thickness, supports up to six 120 mm fans in push/pull mode. Features fins and channels made of copper, exclusive design with stainless steel housing, compact dimensions, and high-quality workmanship. Includes 2x G1/4 connectors.

Watercool Heatkiller RAD 360-S Radiator - Stainless Steel
120 mm
8. Alphacool 50167 Refrigerated shelf
The Alphacool ES 4U Server Rack is a case specifically optimized for water cooling systems, allowing for efficient heat dissipation of up to 2400 watts. It accommodates powerful 360 mm full copper radiators and features a flexible mounting frame that allows for customization to various configurations. The case supports motherboards up to the EE-ATX form factor and provides ample space for up to 15 drives and 8 PCIe cards. With a robust steel construction and thoughtful design, the Alphacool ES 4U Server Rack is ideal for building high-performance server systems that rely on water cooling.
- Optimized case for water cooling systems
- Maximum heat dissipation of 2400 watts
- Space for 360 mm full copper radiators
- Supports motherboards up to EE-ATX form factor
- Capacity for up to 15 drives and 8 PCIe cards.

9. 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).

10. Hailea Ultra Titan 300 HC250
This chiller essentially replaces the radiator, as it lowers the water to a temperature set by you. Temperatures of up to 4 °C are possible, but 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 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. We recommend integrating 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, high summer, etc.), and the chiller will take over the cooling.
