Top-rated products in the Coolant for water coolers category

Here's a ranking of the top rated products in this category. To give you a quick overview, we've also added some key information about the products.

1. EKWB EK-CryoFuel

EK-CryoFuel is the most chemically stable coolant, providing enthusiasts and gamers with the good level of performance and thermal efficiency with emphasis on color stability. EK-CryoFuel coolant is a pure, non-toxic coolant based on the patent-pending chemical formula that prevents the formation of deposits in the liquid cooling circuit. Users of liquid cooling systems can be assured that the EK-CryoFuel coolant, with its very low viscosity, will not clog or damage water blocks and other parts of the circuit when used with EK-DuraClear or EK-ZMT hoses. EK-CryoFuel also contains synergistic corrosion inhibitors to protect metals commonly found in computer fluid cooling systems. 

2. EKWB EK-CryoFuel, 1000ml ready-mix - Clear

Ready-to-use transparent coolant for water cooling systems from EKWB. The bottle contains 1000 millilitres of finished mixture from the EK CryoFuel series with bio growth inhibitors and corrosion protection with high material compatibility.

The features of the EK-CryoFuel coolant at a glance:
Compatible with copper, brass, aluminum, stainless steel, acetal (POM), acrylic, rubber (NBR, EPDM, Neoprene)
Incl. bio growth inhibitors
With corrosion protection
90% biodegradable within 10 days 

EKWB EK-CryoFuel, 1000ml ready-mix - Clear (1000 ml, Ready-mix)
Coolant for water coolers
−5%
CHF17.70 was CHF18.70 CHF17.70/1l

EKWB EK-CryoFuel, 1000ml ready-mix - Clear

1000 ml, Ready-mix

3. Alphacool Ultra Pure Water

Purified by five special filters, including a reverse osmosis filter, the water is completely free of salts, metals, and germs, which are commonly found in tap water. The purification process eliminates chlorine, odors, heavy metals such as lead, copper, cadmium, and mercury, as well as agricultural chemicals, hormones, antibiotics, pesticides, fungicides, herbicides, drug residues, carcinogenic organic chlorine compounds, radioactive substances, asbestos fibers, tar compounds, nitrites, nitrates, bacteria, viruses, fungal spores, and cysts.

As a result, the water leaves no residue during evaporation and does not form limescale deposits. Additionally, due to its low pH value of 6.0 to 7.0, Ultra Pure Water can even absorb deposits (up to a certain amount), ensuring that the cooling system remains permanently clean. 

Alphacool Ultra Pure Water (1000 ml, Ready-mix)
Coolant for water coolers
Quantity discount
CHF8.65 per piece for 3 units CHF8.65/1l

Alphacool Ultra Pure Water

1000 ml, Ready-mix

4. EKWB EK-CryoFuel, 1000ml ready mix

EK-CryoFuel contains synergistic corrosion inhibitors to protect metals commonly found in computer liquid cooling systems. It has been tested according to BS5117 (ASTM D1384) and meets the corrosion standards for copper, brass, aluminum, and stainless steel. This coolant also includes scaling and biological inhibitors to prevent contamination, promoting long operational life and high thermal efficiency.

All EK-CryoFuel mixtures are biodegradable (90% within 10 days) and do not persist in the environment or cause bioaccumulation. EK-CryoFuel offers a shelf life of 2 years from the date of bottling.

EK recommends using the filling bottle designed to significantly ease the filling process in a circulation system. 

5. Corsair Hydro X Series XL5

Corsair Hydro X Series XL5 Performance Coolant brings your custom cooling system’s color scheme to life, available in a wide choice of vibrant translucent colors. Premixed and ready to use right out of the bottle, XL5 Performance Coolant includes anti-corrosion and anti-bacterial inhibitors that keep your custom cooling system running clean and cool. Formulated to protect copper, brass, and nickel fittings and blocks, XL5 Performance Coolant brings vivid color and cool temperatures to your custom cooling system. 

6. Aqua Computer Double Protect Ultra 5l canister

DP Ultra is the result of extensive testing and contains specially coordinated active ingredients that guarantee optimal protection against corrosion and excellent cooling performance. It is manufactured under high-quality standards using the highest quality, absolutely pure active ingredients entirely in Germany. DP Ultra has been specifically developed for use in PC cooling systems with copper and aluminum components and is only very minimally electrically conductive. The active ingredients also reduce bubble formation and optimize heat transfer at surfaces through improved flow behavior of the coolant, leading to optimal cooling performance in your system. DP Ultra is a clear and nearly odorless solution. DP Ultra was developed directly by Aqua Computer in collaboration with Dr. Tobias Voigt. Compared to other available ready-to-use mixtures, DP Ultra achieves very good cooling performance and improves flow behavior due to its ingredients. DP Ultra is pre-dosed and ready to use. We recommend an annual replacement of the coolant. 

7. Aqua Computer Double Protect Ultra

The manufacturer does not compromise on coolant fluids either, ensuring reliable corrosion protection for long-term stable operation with high reliability. This prevents the accumulation of metal in the fluid and, in turn, the thinning of metal components (copper, aluminum, etc.) in the water circuit. 

Aqua Computer Double Protect Ultra (1000 ml, Ready-mix)
Coolant for water coolers
Quantity discount
CHF11.20 per piece for 2 units CHF11.20/1l

Aqua Computer Double Protect Ultra

1000 ml, Ready-mix

8. EKWB EK-CryoFuel Solid Premix - Electric Purple

The EK-CryoFuel Solid from EK Water Blocks has been designed to provide enthusiasts and gamers with the best performance and efficiency while maintaining colour stability for up to two years. In comparison to semitransparent coolants, this Solid series offers special color stability. The colour particles do not settle, so the fresh colouring is retained for a long time. The CryoFuel coolant is not only durable, but also very environmentally friendly: in ten days the coolant can be biodegraded to 90 percent.

All the more astonishing and pleasing as the EK-CryoFuel is also mixed with substances against biological growth within the water cooling circuit as well as anti-corrosion agents and thus offers protection against the two deadly enemies of watercooling for many months: biological residues and rust. However, these advantages should not overlook the high cooling efficiency.

In addition, EK Water Blocks' EK-CryoFuel offers comprehensive compatibility with virtually all metals, rubber types and plastics commonly used in water cooling applications. The bottle offered here contains 1,000 ml of ready-to-use coolant. The colour of the EKWB EK-CryoFuel Solid in a 1,000 ml bottle is purple, EK Water Blocks calls the colour itself "Electric Purple". Whether for Wakü enthusiasts or passionate PC modders, the EKWB EK-CryoFuel is a very good choice in terms of environment and performance. 

9. EKWB EK Waterblocks EK-CryoFuel Loop Cleaner + Superflush concentrate

This loop cleaning and flushing kit from EK Water Blocks ensures a clean loop free from contaminants. With the EK-CryoFuel loop cleaner, you can effectively remove manufacturing residues and impurities. The EK-Superflush is a solution for flushing out production residues, contaminants, and chemical remnants.

The combination of the two concentrates enhances the cooling performance of your loop after a successful cleaning.

Technical details:
- Content: 250 ml
- Features:
- Usable for 2 years
- Compatible with copper, brass, aluminum, stainless steel, acetal (POM), acrylic, rubber (NBR, EPDM, neoprene)
- Includes corrosion protection. 

EKWB EK Waterblocks EK-CryoFuel Loop Cleaner + Superflush concentrate (250 ml, Concentrate)
Coolant for water coolers
CHF34.70 CHF138.80/1l

EKWB EK Waterblocks EK-CryoFuel Loop Cleaner + Superflush concentrate

250 ml, Concentrate

10. Corsair Hydro X Series XL5 Performance Coolant

Corsair Hydro X Series XL5 Performance Coolant brings your custom cooling system’s color scheme to life, available in a wide choice of vibrant translucent colors. Premixed and ready to use right out of the bottle, XL5 Performance Coolant includes anti-corrosion and anti-bacterial inhibitors that keep your custom cooling system running clean and cool. Formulated to protect copper, brass, and nickel fittings and blocks, XL5 Performance Coolant brings vivid color and cool temperatures to your custom cooling system. 

See all products