Best products in the Coolant for water coolers category

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. Alphacool Ultra Pure Water

Purified by 5 special filters (one of which is a special reverse osmosis filter), the water is absolutely free of salts, metals and germs, i.e. all those components that are found in normal tap water. The process eliminates chlorine, odours, heavy metals such as lead, copper, cadmium, mercury, etc. Agricultural chemistry, hormones, antibiotics, pesticides, fungicides, herbicides, drug residues, carcinogenic organic chlorine compounds, radioactive substances, asbestos fibres, tar compounds, nitrites, nitrates, bacteria, viruses, fungal spores, cysts.

This means that the water leaves no residue whatsoever during evaporation and no limescale deposits are formed. On the contrary: Due to the low PH value of 6.0 - 7.0, Ultra Pure Water even absorbs deposits (up to a certain amount), so that the cooling system remains permanently clean. 

2. EKWB EK-CryoFuel, 1000ml Fertiggemisch - Klar

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 Fertiggemisch - Klar (1000 ml, Ready-mix)
Coolant for water coolers
Quantity discount
12.30 CHF per piece for 2 units 12.30 CHF/1l

EKWB EK-CryoFuel, 1000ml Fertiggemisch - Klar

1000 ml, Ready-mix

3. Alphacool Ice water

With the Alphacool Ice Water Crystal, the water cooling pioneer Alphacool fulfils the wishes of many modders and enthusiasts: crisply beautiful colours, great effects in Plexi coolers, hoses and expansion tanks as well as longevity and compatibility with the materials used. The Alphacool Ice Water Crystal series has been tested for more than 1.5 years for all possible applications in the Alphacool laboratory as well as by external testers and modders and has been found to be very good and durable. If you want to give your PC an extra portion of luminosity, you can use the Alphacool Crystal UV ice water. The UV reactivity with UV LEDs or cathodes is outstanding. With the Alphacool ice water you give your water cooling an optical highlight with best cooling performance and longevity. 

4. 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. 

5. 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. 

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

Reliable loop cleaning and flushing kit, for cleaning water cooling circuits, 250 ml content.

EKWB EK Waterblocks EK-CryoFuel Loop Cleaner + Superflush concentrate (250 ml, Concentrate)
Coolant for water coolers
36.40 CHF 145.60 CHF/1l

EKWB EK Waterblocks EK-CryoFuel Loop Cleaner + Superflush concentrate

250 ml, Concentrate

7. EKWB EK-CryoFuel Solid Premix - Cloud White

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 white, EK Water Blocks calls the colour itself "Cloud White". Whether for Wakü enthusiasts or passionate PC modders, the EKWB EK-CryoFuel is a very good choice in terms of environment and performance. 

8. EKWB EK-CryoFuel Solid Premix - Azure Blue

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 blue, EK Water Blocks calls the colour itself "Azure Blue". Whether for Wakü enthusiasts or passionate PC modders, the EKWB EK-CryoFuel is a very good choice in terms of environment and performance. 

9. Alphacool Ice water Crystal Red

With the Alphacool Ice Water Crystal, the water cooling pioneer Alphacool fulfils the wishes of many modders and enthusiasts: crisply beautiful colours, great effects in Plexi coolers, hoses and expansion tanks as well as longevity and compatibility with the materials used. The Alphacool Ice Water Crystal series has been tested for more than 1.5 years for all possible applications in the Alphacool laboratory as well as by external testers and modders and has been found to be very good and durable.

If you want to give your PC an extra portion of luminosity, you can use the Alphacool Crystal UV ice water. The UV reactivity with UV LEDs or cathodes is outstanding.

With the Alphacool ice water you give your water cooling an optical highlight with best cooling performance and longevity.

Permanently applicable
Very good thermal conductivity
Very low electrical conductivity
Compatible with most plastics such as PVC, NBR, Acetal, Plexi and Nylon
Compatible with most metals such as copper, silver, nickel and brass
No dangerous goods (not subject to labelling according to CLP Regulation)

Due to the intensity of the colors, clothing or other materials that come into contact with the color may discolor. Please be careful not to spill anything during use. 

10. EKWB EK-CryoFuel

EK-CryoFuel also contains synergistic corrosion inhibitors to protect metals commonly found in computer liquid cooling systems. It has been tested to BS5117 (ASTM D1384) and meets corrosion standards for copper, brass, aluminium and stainless steel. The coolant contains everything a high-end liquid cooling system needs for efficient thermal performance and the necessary protection of your water blocks. All EK-CryoFuel blends are biodegradable (90% in a 10 day period) and do not linger in the environment or cause bioaccumulation. EK-CryoFuel offers a shelf life of 2 years from date of filling. 

See all products