Top rated Water cooling reservoirs

Here’s a ranking of the top rated Water cooling reservoirs. To give you a quick overview, we’ve added the most important information about each product. This page always stays fresh and updates automatically.

1. Watercool Heatkiller Tube - Basic AGB Mounting Kit

The use of the bracket is incredibly simple. You simply slide the bracket onto the struts to the desired position and then secure it using the countersunk screws attached to the side. On the back of the bracket, there are M4 threads that allow the bracket to be screwed onto the housing wall. Vibration-dampening mounting is also possible, as decoupling modules are included in the package. Additionally, with optionally available adapters, the expansion tank can be mounted to mounting holes for fans in the sizes of 120 x 120 mm or 140 x 140 mm. This allows the expansion tank to be mounted, for example, to a radiator from the HTSF2 series. An adapter for mounting the expansion tank to a radiator from the MO-RA3 series is also available. Technical specifications: Material: POM (Acetal), Color: black. Delivery includes: 1x HEATKILLER® Tube - Basic Mounting Kit, mounting materials. 

2. Alphacool Cape Corp Coolplex HF Metal 10

The Alphacool Cape Corp Coolplex HF Metal is the first expansion tank from Alphacool, featuring a bottom and top made entirely of brass and equipped with the Lighttower water effect. 

3. Alphacool Cape Corp Coolplex HF Metal 15

The Alphacool Cape Corp Coolplex HF Metal is the first expansion tank from Alphacool, featuring a base and lid made entirely of brass and, of course, includes the Lighttower water effect. 

4. Alphacool Core 100 Aurora ARGB balance tank, acrylic

The Alphacool Core 100 Aurora ARGB reservoir is a high-quality solution for water cooling systems that meets both functional and aesthetic demands. The modular reservoir is made of durable acrylic and has a capacity of up to 200 ml of coolant, allowing for improved cooling performance. Equipped with three G1/4-inch threads, the reservoir can be optimally integrated into existing cooling loops. Its subtle design, combined with RGB lighting, provides an appealing visual effect, while the mounting frame allows for easy installation on 120 or 140 mm fan spots or radiators. The innovative Lighttower effect created by the riser tubes offers an impressive display of the coolant within the reservoir. These features make the Core 100 Aurora ARGB reservoir an excellent choice for anyone looking to enhance their water cooling systems.

- Modular acrylic reservoir for improved cooling performance
- Three G1/4-inch threads for flexible connection options
- Integrated RGB lighting for appealing visual effects
- Easy installation on 120 or 140 mm fan spots or radiators. 

5. Alphacool Ice Ball Digital RGB Plexi

The Alphacool Eisball Digital RGB Plexi is an innovative reservoir for water cooling systems, distinguished by its unique spherical design. With an integrated pump top and a fully encircling digital RGB ring, this reservoir not only provides effective cooling but also delivers an impressive visual presentation. The 22 addressable digital RGB LEDs housed in a sleek chrome ring allow for customizable lighting that enhances the overall look of any system. The Eisball is not only functional but also a true eye-catcher in any setup. Thanks to the included mounting plates and a Velcro mat, the Eisball can be flexibly mounted in various cases and positions, making it a versatile solution for water cooling enthusiasts.

- Unique spherical design for an appealing look
- Integrated digital RGB controller for customizable lighting effects
- Versatile mounting options with different mounting plates
- High-quality materials like acetal and chrome elements for durability. 

6. Alphacool PUM Iceball Adressable RGB - Acrylic (incl. D5 VPP655 PWM)

The Alphacool Eisball reservoir with integrated pump top features a unique design. The spherical shape opens up numerous new possibilities, especially in the modding scene. From static, single-color lighting to an R2D2 mod: creativity knows no bounds here. Another special feature of this version is that the pump is already pre-installed. Alphacool relies on the proven Eis pump D5 VPP655 for this.

Unlike conventional reservoirs, the Alphacool Eisball showcases a spherical design. The 22 digital RGB LEDs, which run completely around the equator of the Eisball in a chrome ring, provide versatile and optimal lighting. Of course, a digital RGB controller is included with the device, allowing you to customize the style and lighting of your Eisball. 

7. Alphacool 13324 Computer cooling system part/accessories pump and reservoir

The Alphacool Eisball expansion tank with integrated pump top features a unique design. With the digital RGB ring that runs completely around the equator of the Eisball, a full and impressive illumination is guaranteed. Thanks to its versatile mounting options, the Eisball can fit into almost any system.

The Alphacool Eisball is the first expansion tank in the shape of a sphere. This makes it an absolute eye-catcher in any water-cooled system. The 22 digital RGB LEDs that run all the way around the equator of the Eisball allow for perfect lighting. The addressable digital RGB LEDs are housed in an elegant chrome ring, which further enhances its excellent appearance. A digital RGB controller is, of course, included in the accessories. The Alphacool logo is finished in matte silver, perfectly complementing the overall look. 

8. Alphacool Cape Corp Coolplex Pro 10 LT

The Alphacool Cape Coolplex expansion tanks have been a well-known name in the water cooling market for many years.

Even such solid products need an update to meet the latest demands. Therefore, we at Alphacool have phased out our last series and are now launching our tanks, newly made from POM, named "LT," and from solid metal, "Copper Edition." Of course, the tubes are once again made from high-quality Plexiglas, which has safely operated in your PC in the past.

The updates are quite simple: In addition to the new colors, an additional threaded opening has been incorporated into the lid of the expansion tank. This makes filling with a fill port easier. Furthermore, this tank can now also be mounted flat! The riser tube, which is normally used for venting the system, can now be unscrewed, as it is no longer needed when the inlet comes from above. A nice side effect: We now have more space for lighting modules and can showcase our new tank even better! To further enhance the overall concept, all closure screws for both models will be delivered in shiny copper.

Classically, all threads are sized at ¼”. Our well-known transparent mounts are also included in the package: This way, the tank serves as a wonderful eye-catcher for your PC under the glow of an LED!

Note: Additional screws are required for installation. 

9. Raijintek ANTILA PURE R100B expansion tank, 172.5mm, ARGB

The Antila Pure R100B100B is a reservoir with a capacity of 400 ml. With its striking design and integrated ARGB lighting, it is perfect for modders, RGB enthusiasts, and water cooling fans alike.

Overview of the Antila Pure R100B reservoir:
- Large reservoir in black
- 400 ml capacity
- Four G1/4-inch ports for integration into the loop
- Transparent reservoir made of tempered glass
- Lighting with twelve digitally addressable ARGB LEDs

The Antila Pure R100B from Raijintek is a high-quality reservoir with an eye-catching design. The transparent reservoir is made of durable tempered glass, allowing a view of the coolant.

The reservoir, a surrounding ring, and the lower connections are illuminated with addressable RGB LEDs. The ARGB lighting with a 3-pin connector is digitally addressable and can be synchronized with the rest of the setup.

The reservoir offers a capacity of 400 ml and has a total of four G1/4-inch ports for integration into the water circuit. Two ports are located on the top, and two more are at the bottom of the reservoir.

This product is delivered without the necessary connectors, which must be purchased separately.

Technical details:
- Dimensions (overall): 77 x 77 x 173 mm (L x W x H)
- Dimensions (reservoir): 65 x 65 x 127 mm (L x W x H)
- Weight: 780 g
- Material: POM, glass, aluminum, steel
- Color: Transparent, black
- Capacity: 400 ml
- Ports: 4x G1/4-inch
- Lighting:
- Type: 3-Pin RGB (5VDG, 5V)
- Number of LEDs: 12 pieces. 

10. Alphacool Cape Corp Coolplex Pro 25 LT

The Alphacool Cape Coolplex expansion tanks have been a well-known quantity on the water cooling market for many years!

Even such solid products need an update to meet the latest requirements. Therefore we at Alphacool have discontinued our last series and are now launching our containers made of POM with the name "LT" and full metal "Copper Edition". Of course, the tubes are again made of first-class Plexiglas, which was already safely operated in your PC in the past.

The updates are very simple:
In addition to the new colours, an additional threaded opening has now been incorporated in the lid of the expansion tank. This facilitates filling with a Fillport. This container can now also be mounted flat! The riser tube, which is normally provided for venting the system, can now be unscrewed, as it is no longer needed when the inlet comes from above. As a nice side effect: we now have more space for lighting modules and can now show off our new container even better! To round off the whole concept even further, all screw plugs are supplied in shiny copper for both models!

Classically, all threads are cut on a size of ¼". Also again our well-known transparent brackets are included in the scope of delivery: Thus the container in the light of an LED is a wonderful eye-catcher for your PC!

Note: Additional screws are required for mounting. 

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