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The most commonly used method for water cooling so far has been standard PVC hoses. Now, Alphacool offers another way to design a water cooling system. The HardTube variant brings more order to the system, creating a much more structured appearance. Brand new are the brass tubes, available in Black Chrome and Chrome, as well as acrylic tubes, carbon, and borosilicate glass. With the appropriate fittings and a very simple design, these can be connected or attached absolutely leak-proof. The PETG tube can be easily adjusted to the system with the right bending tool, without the need for additional angle pieces. To install the tubes into the system, they need to be cut to the appropriate length. PETG tubes require lower temperatures than acrylic to bend and are generally a bit more flexible and easier to handle. The perfect entry into the world of HardTubes.
Pro



A water cooling system consists of many different elements: pumps, radiators, cooling blocks, expansion tanks, and often additional components. To build a functional water cooling system, these parts need to be connected. The simplest way to do this is by using a hose. Here, the Alphacool AlphaTube HF hose is an excellent choice.
Appearance: Available in various vibrant colors, clear, and also UV-active. There is a wide selection of different variants of the AlphaTube HF hoses, making it easy to find the hose that best suits your taste.
Usage: The AlphaTube HF hose has the perfect flexibility for easy handling. It is flexible enough to be laid without effort, yet rigid enough that it won't kink even at tighter bending radii.
Various sizes: We offer the AlphaTube HF hose in all common sizes.
Technical specifications:
- Length: 1 m
- Hose size: OD 13 mm / ID 10 mm
- Material: PVC
- Hardness: 65-70 A-Shore
- Operating temperature: -10 - 80 °C
- Burst pressure: 8 bar
- Nominal pressure: 2 bar.




Neat appearance with fewer fittings. With the Alphacool HardTube 16/13 Set, the next water cooling system can be implemented without any issues. The four tubes are completely transparent, allowing the coolant inside to be clearly visible.
With the right bending tool, the acrylic tubes can be easily adapted to the system. This way, you save on fittings and achieve a clean look.
Technical details:
- Color: Transparent
- Material: Acrylic (PMMA)
- Length: 80 cm (total 320 cm)
- Outer diameter: 16 mm, 5/8"
- Inner diameter: 13 mm, 1/2"
- UV color: Not UV-active
- Delivery includes: 1x Alphacool HardTube 16/13 mm Acrylic 320 cm Set - transparent (4x 80 cm)
Note: Not compatible with Monsoon fittings. Due to the precisely manufactured tubes, the connections must be pushed on straight with a bit of force. Use only with clear, transparent cooling liquids. The particles and additives in pastel liquids can clog and permanently damage water cooling products such as radiators, pumps, coolers, and tubes. This may result in the manufacturer’s warranty being voided.


Alphacool Hardtube acrylic 16/13mm 80cm - set of 4
0.80 m, Plastic
The most common hard tubes are clear and transparent. In addition, hard tubes made of brass and carbon have also gained popularity. Now, Alphacool offers the Ice Tube as part of its Ice product line. The surface visually resembles ice and feels like it too—somewhat rough, yet still smooth. The Ice Tube significantly alters the appearance within the system. Especially after filling the system, the actual effect is best observed. The water has the look of frozen ice. When the loop is illuminated with LEDs, clear hard tubes reflect the individual LEDs very well, but this is not the case with the Ice Tubes. Here, the light is diffused, resulting in a much softer and better illumination. The Ice Tube can be bent like all acrylic hard tubes using the appropriate bending tools. However, this noticeably changes the appearance of the Ice Tubes at the bends, no longer matching the original look. This can create an additional effect, but those who wish to maintain the Ice Tube appearance should use appropriate fittings for bends.
Pro
Contra









Clean appearance with fewer angle pieces. The Alphacool HardTube 16/13 set allows for easy implementation of your next water cooling system. The four tubes are completely transparent, showcasing the coolant inside beautifully.
With the right bending tool, the acrylic tubes can be easily adapted to the system. This eliminates the need for angle pieces and achieves a clean look.
Technical details:
- Color: Transparent
- Material: Acrylic (PMMA)
- Length: 60 cm (total 240 cm)
- Outer diameter: 16 mm, 5/8"
- Inner diameter: 13 mm, 1/2"
- UV color: Not UV-active
- Delivery includes: 1x Alphacool HardTube 16/13 mm Acrylic 240 cm Set - transparent (4x 60 cm)
Note: Not compatible with Monsoon fittings. Due to the custom-fit tubes, the connections must be pushed on straight with a bit of force.
Use only with clear, transparent water cooling liquids. Particles and additives in pastel liquids can clog water cooling products such as radiators, pumps, coolers, and tubes, causing permanent damage. This may also void the manufacturer's warranty.



Alphacool Hardtube acrylic 16/13mm 60cm - set of 4
0.60 m, Plastic
Every water cooling system requires hoses or hard tubes to connect individual components such as radiators, coolers, and expansion tanks. Until now, PVC hoses have typically been used in water cooling systems. The Alphacool AlphaTube TPV introduces a new material from the Alphacool Enterprise Solutions series. TPV, or EPDM rubber, is preferred in the industry.
What is the advantage of TPV? Compared to PVC hoses, the AlphaTube TPV hoses offer various benefits for water cooling. They are significantly more resistant to acids and bases. Additionally, they are much more temperature-resistant than PVC hoses. The Alphacool AlphaTube can withstand temperatures up to 155 °C. While PVC hoses can deform at higher water temperatures, especially at points with tighter bending radii, the TPV hose maintains its shape. This eliminates the risk of the hose deforming to the point where water flow is obstructed.
How easy is it to install the AlphaTube? The Alphacool AlphaTube TPV hose can be easily and simply installed just like any other PVC hose. It is fundamentally a bit stiffer, but only slightly. Handling the installation of the TPV hoses is just as straightforward as one would expect from PVC hoses.
What is special about a TPV hose? The Alphacool AlphaTube TPV is characterized by its high resistance to acids, bases, and external influences. It also boasts an exceptional durability that far exceeds that of PVC hoses. The matte black hose offers a subtle velvet appearance, making it an eye-catching feature in any water-cooled PC.


Alphacool AlphaTube tube TPV 16/10mm - black Matt 3.3 m
3.30 m, Plastic
The Eisbaer Quick-Connect Extension Set allows for easy expansion of the cooling circuit of an Eisbaer or Eiswolf GPX-Pro cooler with additional components. For example, you can add another radiator, another cooler, or other components.
The set consists of two 32 cm long hoses in 11/8 format, which are wrapped in bend protection springs. This prevents the hoses from kinking and disrupting the flow of water. Safety is a top priority.
At both ends, there are straight connectors that are pre-installed on the hoses. You simply need to screw these into the corresponding G1/4" threads. On the other end, there are two ends of a safety quick disconnect from the Alphacool HF series, just like those found on the Eisbaer or Eiswolf. This means you can simply open the quick disconnect of the Eisbaer or Eiswolf and screw them together with the matching counterparts from this set and another product. The circuit is complete. Of course, it will still need to be filled.



Alphacool 12563 Computer cooling system part/accessories
0.32 m, Plastic
The most common hard tubes are clear and transparent. In addition, hard tubes made of brass and carbon have also gained popularity. Now, Alphacool offers the Ice Tube as part of its Ice products. The surface visually resembles ice and feels that way too—somewhat rough, yet still smooth.
The Ice Tube significantly alters the appearance of the system. Especially after filling the system, the actual effect is best observed. The water has the look of frozen ice. When the circuit is illuminated with LEDs, the reflection of the individual LEDs is very clear in transparent hard tubes, but not so with the Ice Tubes. Here, the light is diffused, resulting in a much softer and better illumination.
Note:
The Ice Tube can be bent like all acrylic hard tubes using the appropriate bending tools. However, the appearance of the Ice Tubes at the bends noticeably changes and no longer corresponds to the original look. This can create an additional effect, but anyone who wants to maintain the Ice Tube appearance should use appropriate fittings for bends.







Every water cooling system requires hoses or hard tubes to connect individual components such as radiators, coolers, and expansion tanks. Until now, PVC hoses have typically been used in water cooling systems. The Alphacool AlphaTube TPV introduces a new material from the Alphacool Enterprise Solutions series. TPV, or EPDM rubber, is preferred in the industry.
What is the advantage of TPV? Compared to PVC hoses, the AlphaTube TPV hoses offer various benefits for water cooling. They are significantly more resistant to acids and bases. Additionally, they are much more temperature-resistant than PVC hoses. The Alphacool AlphaTube can withstand temperatures up to 155 °C. While PVC hoses can deform at higher water temperatures, especially at points with tighter bending radii, the TPV hose maintains its shape. This eliminates the risk of the hose deforming to the point where water flow is obstructed.
How easy is it to install the AlphaTube? The Alphacool AlphaTube TPV hose can be easily and simply installed like any other PVC hose. It is fundamentally a bit stiffer, but only slightly. Handling the installation of the TPV hoses is just as straightforward as one would expect from PVC hoses.
What is special about a TPV hose? The Alphacool AlphaTube TPV is characterized by its high resistance to acids, bases, and external influences. It also boasts an exceptional durability that far exceeds that of PVC hoses. The matte black hose additionally offers a subtle velvet appearance, making it an eye-catching feature in any water-cooled PC.



Alphacool 17562 Computer cooling system part/accessories tube
3.30 m, Plastic
The HardTube project is becoming a reality. Alphacool is taking a completely new approach and making a strong statement!
The most commonly used method for water cooling has been standard PVC hoses – now Alphacool offers another way to design a water cooling system. The HardTube variant brings even more order to the system, creating a much more structured appearance.
The acrylic tube can be easily adapted to the system with the appropriate bending tool, eliminating the need for additional angle pieces. To install the tubes into the system, they must be cut to the appropriate length.




Alphacool HardTube 13/10mm Plexi (PMMA) Klar 40cm
0.40 m, Plastic