Show More
    €
    -
    €
    Show More
    mm
    -
    mm
    mm
    -
    mm
    mm
    -
    mm
    l
    -
    l
    Show More
    mm
    -
    mm
    mm
    -
    mm
    cm
    -
    cm
    kg
    -
    kg
    l/h
    -
    l/h
    m
    -
    m
    FPI
    -
    FPI
    Bar
    -
    Bar
    W
    -
    W
    V
    -
    V
    Show More
    -
    Show More
    dB(A)
    -
    dB(A)

    Water Cooling Components

    Dive into the world of water cooling and unlock your PC's full potential. In our "Water Cooling Components" category, you'll find everything you need to build your custom loop. From powerful pumps to sleek reservoirs, this is where your journey to a whisper-quiet, perfectly cooled setup begins – delivering outstanding performance and stunning looks.
    606 Results
    WAEK-1650
    (2)
    Pre-mixed coolant from EKWB, 1,000 ml content, Blood Red, including corrosion protection & biocides, not suitable for aluminium!
    19,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 31%
    WAAU-554
    (0)
    Reservoir by Singularity Computers, with 150 mm tube height, tube made of transparent acrylic glass, lid and base made of frosted and black acrylic, flexible mounting options
    Price reduced from 28,90 € to 19,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WABW-255
    (6)
    Digital flow indicator for water cooling systems, continuously displays the flow in your loop, temperatures are shown
    39,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WARA-382
    (5)
    With its compact design and excellent cooling performance, the Magicool radiators become top choice of water cooling users.
    39,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-831
    (0)
    1 litre of UV active, opaque, and fluorescent coolant, in green with low electrical conductivity, for use in water cooling systems.
    19,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-866
    (4)
    Pre-mixed clear coolant from Corsair, 1,000 ml content, long-lasting colour stability, permanently usable, low electrical conductivity, very good thermal conductivity
    18,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 27%
    WAAU-668
    (0)
    Singularity Computers reservoir, with 200 mm tube height, 4x G1/4 inch connections, with D-RGB lighting, with black aluminium caps
    Price reduced from 50,90 € to 36,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 28%
    WAAU-721
    (0)
    Expansion tank for custom water cooling, G1/4 inch thread, RGB lighting
    Price reduced from 45,90 € to 32,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WABW-024
    (0)
    360 mm radiator bracket from Barrow, for mounting radiators in the PC case, freely positionable in the case, fixable with screws
    29,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 05.01.2027
    WAZU-1149
    (0)
    Cleaning agent for water cooling systems, 100 ml, citric acid monohydrate, Please observe the warnings for use!
    9,88 €
    Incl. VAT, add. delivery costs
    In Stock
    WABW-008
    (0)
    240 mm radiator for water cooling, made of copper, for custom loops, 165 ml capacity
    23,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 38%
    WAAU-417
    (0)
    High-quality 150 mm replacement acrylic tube for reservoirs from Bitspower's Z and Z-Multi series
    Price reduced from 12,90 € to 7,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-1030
    (0)
    Transparent 13/10 soft tube for water cooling, 100 cm in length
    7,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-1274
    (0)
    150 ml coolant concentrate, produces purple colour, with low electrical conductivity, for use in water cooling systems, to be mixed with 850 ml of distilled water, UV-reactive
    7,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-686
    (8)
    Practical hose cutter for clean and smooth cutting of PVC or PETG hoses/tubes with a diameter of 0-25 mm
    7,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 28%
    WAAU-591
    (0)
    Reservoir by Singularity Computers, with 200 mm tube height, tube made of transparent acrylic glass, lid and base made of frosted and black acrylic, flexible mounting options
    Price reduced from 31,90 € to 22,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 29%
    WAAU-592
    (0)
    Reservoir by Singularity Computers, with 200 mm tube height, transparent acrylic tube, lid and base made of black acetal, flexible mounting options, black
    Price reduced from 30,90 € to 21,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAEK-1644
    (2)
    Concentrate for 1L of coolant from EKWB, 100 ml content, clear/transparent, including corrosion protection & biocides, not suitable for aluminium!
    12,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WABW-131
    (0)
    Transparent hose, made of PU plastic, 1 m length, 13/10 mm OD/ID, resistant and flexible
    6,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAEK-2225
    (1)
    Flexible pump holder, for various pumps and reservoir combos from EK Water Blocks, for 120mm fan slots
    9,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-815
    (4)
    Flow indicator made of acetal & acrylic, two-coloured impeller, 3x 1/4" female threads & sealing screw
    18,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-1052
    (0)
    Temperature sensor for water cooling, extra flat, with AG adapter for G1/4 inch thread.
    17,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 21%
    WAPU-178
    (0)
    Vertical mounting bracket from Singularity Computers, For pump and D5/Reservoir Combos, For vertical mounting on radiators
    Price reduced from 22,90 € to 17,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WABW-257
    (2)
    Flow indicator for water cooling, continuously shows the flow in your loop, acrylic
    17,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 36%
    WAZU-1235
    (0)
    aRGB Ambient Light LED Strip for MO-RA IV 200, for indirect lighting, compatible with active and passive control, connection via 3-pin RGB
    Price reduced from 10,90 € to 6,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-898
    (5)
    Pre-mixed coolant from Alphacool, 1,000 ml content, Green UV-active, long-lasting colour stability, permanently usable, low electrical conductivity, very good thermal conductivity.
    12,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAEK-2226
    (0)
    Flexible pump holder, for various pumps and reservoir combos from EK Water Blocks, for 140mm fan slots
    11,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 33%
    WABW-099
    (0)
    Adapter for mounting DDC pumps to reservoirs, for custom water cooling systems, G1/4-inch threads
    Price reduced from 8,90 € to 5,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-777
    (1)
    XSPC screw set with 16 UNC screws (16x 30 mm), for screwing single, dual, and quad radiators with fans, ideal for push-pull configurations
    2,90 €
    Incl. VAT, add. delivery costs
    In Stock
    Save 10%
    WAZU-1003
    (0)
    Assembly kit for using a LEAKSHIELD with aqua computer ULTITUBE reservoir
    Price reduced from 9,90 € to 8,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-1091
    (0)
    Flexible 11/8 soft tube for water cooling, durable material, in 100 cm length, matte black
    8,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-1116
    (0)
    1 L pre-mixed coolant, UV active and fluorescent, with low electrical conductivity, for use in water cooling systems
    9,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-1032
    (0)
    Transparent 13/10 soft tube for water cooling, in 100 cm length
    7,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAEK-774
    (3)
    Black gesleevtes cable from EK Water Blocks to extend the PWM fan signal (30 cm) - with 3-pin fans, compatible!
    3,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAZU-844
    (4)
    1 litre of distilled water, according to DIN 13060 / DIN 43530 / EN 285, deionised / UV irradiated / chemically pure, ideal for water cooling
    2,49 €
    Incl. VAT, add. delivery costs
    In Stock
    WABW-104
    (2)
    Efficient hose cutter for soft tubes, enables straight cutting
    6,90 €
    Incl. VAT, add. delivery costs
    In Stock
    ZUAD-604
    (10)
    Black sleeved Y-splitter cable from Phanteks for connecting two 4-pin fans to one PWM fan connector
    2,90 €
    Incl. VAT, add. delivery costs
    Pre Order Expected restock at 13.11.2026
    Save 68%
    WAZU-143
    (1)
    UV-active Masterkleer hose 13/10mm in red with high durability and for tight bending radii
    Price reduced from 2,90 € to 0,90 €
    Incl. VAT, add. delivery costs
    In Stock
    WAEK-1226
    (10)
    24-pin ATX bridging plug to operate the power supply independently
    3,90 €
    Incl. VAT, add. delivery costs
    In Stock
    ZUAD-468
    (0)
    Black sleeved cable from Akasa for extending the fan signal (30 cm) - compatible with 3-pin and PWM fans
    3,90 €
    Incl. VAT, add. delivery costs
    In Stock

    Unleash Ultimate Cooling Power – Discover Premium Components for Perfect Water Cooling

    With a custom water cooling system, your PC will be quieter and cooler. The advantage over an AIO is that you can integrate your graphics card, motherboard, and even your SSD into a self-built water cooling loop. This way, all the PC components relevant to your gaming PC's performance are cooled with water and can unleash their full potential.

    We offer water cooling components for custom loops from the following manufacturers:

    • EK Water Blocks
    • Corsair
    • Alphacool
    • Phanteks
    • BitsPower

    Build your own water cooling system and achieve the best temperatures

    The topic of water cooling may seem complex and time-consuming at first glance. With the right accessories, however, you will definitely not have any problems building your next water cooling system.

    What do I need for a custom water cooling system?

    • Reservoirs
    • Distro Plates
    • Pumps
    • Radiators
    • Tubes
    • Controllers
    • Water Additives

    The biggest and most important part of your water cooling loop is the tubes or hard tubes and the fittings that hold your circuit together. They connect the water coolers of graphics cards, CPUs, and other components with the reservoirs and radiators. Therefore, they must be absolutely leak-proof so that your valuable hardware is not prematurely damaged.

    Additional accessories for water cooling systems

    Other categories are also essential for building a reliable water cooling system:

    Coolant with various colours and effects

    Water additives bring colour to water cooling systems and give the coolant impressive colours or light effects (e.g., UV activity). Coolants for improving thermal properties or additives for enhanced corrosion protection are also in demand.

    Ball valves and shut-off valves for easy maintenance of the water circuit

    Shut-off and ball valves allow flexible interruption of the cooling circuit, for example, to subsequently disconnect individual components for maintenance or to refill coolant.

    O-rings prevent liquid damage

    Sealing rings reliably protect the hardware from contact with water. Remember to also replace the O-rings in long-standing water cooling loops. Wear on the seals can cause your loop to no longer be leak-proof.

    Bridging external and internal threads

    Spacer rings and sleeves are sealed spacers that can be used, for example, as spacers between longer external and shorter internal threads.

    Water cooling adapters facilitate the construction of your cooling circuit

    Adapters can be used to connect different connection formats.

    Secure hold of your tubes with compression fittings

    Compression fittings not only look chic, but they also ensure safety in water cooling systems by securely holding the tube or hard tube.

    Openings in reservoirs and the case lid for filling the loop

    Water fill ports are fill nozzles that make it easier to fill the water circuit through an opening in the case lid or directly at the reservoir.

    Flow sensors to measure the flow in your system

    With flow sensors, you are on the safe side because you always have the flow in your water cooling loop in view. They are available in analogue form, in which they purely indicate the current flow through movement. There are also digital versions that display the flow rate in litres per minute and issue warning signals if the flow rate is too low.

    Configure and buy water cooling systems at Caseking

    If you want to build your custom water cooling system, Caseking is definitely the right place. We offer you everything you need for building your custom loop and are happy to assist you with any questions or problems.