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    Water Blocks

    134 Results
    new
    Thermal Grizzly DeltaMate ASUS Astral 5090 Glass Graphics Card Water Block
    Thermal Grizzly DeltaMate ASUS Astral 5090 Glass Graphics Card Water Block
    COO-TGZ-09401
    (0)
    GPU water block for the ASUS ROG Astral GeForce RTX 5090, featuring an ultra-high-performance cold plate, an RGB-lit viewing window made of Schott BOROFLOAT glass, and a black anodised aluminium housing
    £499.99
    Incl. VAT
    In Stock
    new
    Thermal Grizzly Mycro Pro Stainless Steel CPU Water Block - AMD AM4/AM5
    Thermal Grizzly Mycro Pro Stainless Steel CPU Water Block - AMD AM4/AM5
    COO-TGZ-09403
    (0)
    The Mycro Pro Stainless Steel AMD AM4/AM5 is a CPU water block with a very good price-to-performance ratio for AMD Socket AM5 (backward-compatible with AM4), featuring an unplated Ultra-High-Performance Coldplate.
    £99.95
    Incl. VAT
    In Stock
    new
    Thermal Grizzly Mycro Pro Stainless Steel CPU Water Block - Intel 1700/1851/1954
    Thermal Grizzly Mycro Pro Stainless Steel CPU Water Block - Intel 1700/1851/1954
    COO-TGZ-09404
    (0)
    The Mycro Pro Stainless Steel Intel 1700/1851/1954 is a CPU water block with a very good price-to-performance ratio for Intel Socket LGA1851 (backward-compatible with LGA1700), featuring an unplated Ultra-High-Performance Coldplate
    £99.95
    Incl. VAT
    In Stock
    new
    Thermal Grizzly DeltaMate MSI Suprim 5090 Glass Graphics Card Water Block
    Thermal Grizzly DeltaMate MSI Suprim 5090 Glass Graphics Card Water Block
    COO-TGZ-09402
    (0)
    GPU water block for the MSI Suprim GeForce RTX 5090, equipped with an Ultra-High-Performance-Coldplate, an RGB-illuminated viewing window made of Schott BOROFLOAT® glass, and a black anodized aluminum housing.
    £499.99
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Velocity² D-RGB CPU Water Block For AMD AM5 - Nickel + Plexi
    EK Water Blocks EK-Quantum Velocity² D-RGB CPU Water Block For AMD AM5 - Nickel + Plexi
    WC-AC7-EK
    (1)
    3831109857694, CPU Water Block, Digital RGB Lighting, Compatibe with AMD AM5 socket, 2 Year Warranty
    £119.99
    Incl. VAT
    In Stock
    LYNK+ Zotac 5090 All In One Graphics Card Cooler
    LYNK+ Zotac 5090 All In One Graphics Card Cooler
    COO-LYN-06815
    (0)
    All-in-one GPU cooling solution, Complete bundle (Self Assembly), Quick Connect fittings, Silver finish, Designed for RTX 5090s, RGB lighting, Please note: Fans are not included with this bundle
    £337.99
    Incl. VAT
    In Stock
    Save 9%
    Corsair Hydro Series iCUE LINK XC7 RGB ELITE White CPU Water Block
    Corsair Hydro Series iCUE LINK XC7 RGB ELITE White CPU Water Block
    COO-CRS-00698
    (0)
    CPU Water Block, White, Intel 1700, AMD AM4 and AM5 support, 2 Year Warranty
    Price reduced from £99.95 to £89.99
    Incl. VAT
    In Stock
    TRYX PANORAMA AMOLED CPU Water Block - Black
    TRYX PANORAMA AMOLED CPU Water Block - Black
    COO-TRX-06067
    (0)
    CPU water block, innovative AMOLED display, VRM fan, two G1/4-inch connectors, compatible with Intel and AMD sockets, with rotatable 90-degree fittings
    £219.95
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5080 Reference ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5080 Reference ARGB Graphics Card Water Block
    COO-ACL-04395
    (0)
    5080 Water Block, Compatible with certain Reference 5080 Cards, 3 year Warranty
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core RX 9070 XT ASUS TUF + Prime Graphics Card Water Block
    Alphacool Core RX 9070 XT ASUS TUF + Prime Graphics Card Water Block
    COO-ACL-05438
    (0)
    Compatible with - Asus Prime Radeon RX 9070 OC Edition/ - Asus TUF Gaming Radeon RX 9070 OC Edition / Asus Prime Radeon RX 9070 XT OC Edition / Asus TUF Gaming Radeon RX 9070 XT OC Edition
    £199.99
    Incl. VAT
    In Stock
    Save 19% Free Delivery
    Phanteks Glacier EZ-Fit ASUS RTX 4090, DRGB Lighting GPU Full Water Block
    Phanteks Glacier EZ-Fit ASUS RTX 4090, DRGB Lighting GPU Full Water Block
    COO-PHK-03522
    (0)
    GPU Cooling Block, Compatible ASUS ROG Strix/TUF Gaming RTX 4090 GPUs, 10mm copper cold plate, Innovative fitting location, Viton Rubber Washers, Integrated DRGB lighting
    Price reduced from £234.95 to £189.95
    Incl. VAT
    In Stock
    Free Delivery
    Phanteks Glacier RTX 3090Ti ASUS Graphics Card Water Block with Backplate - Chrome
    Phanteks Glacier RTX 3090Ti ASUS Graphics Card Water Block with Backplate - Chrome
    WC-03M-PT
    (0)
    High-performance waterblock, Asus ROG Strix & TUF RTX 3090 Ti GPU, Integrated D-RGB illumination, Viton o-rings, Chrome
    £185.88
    Incl. VAT
    In Stock
    Alphacool Apex 1 AMD AM5 CPU Water Block - Black
    Alphacool Apex 1 AMD AM5 CPU Water Block - Black
    COO-ACL-04233
    (0)
    AMD AM5 CPU Water Block, RGB Lighting
    £179.99
    Incl. VAT
    In Stock
    Alphacool Apex 1 LGA 1700/1851 CPU Water Block - Black
    Alphacool Apex 1 LGA 1700/1851 CPU Water Block - Black
    COO-ACL-04232
    (0)
    Intel Socket 1700 and 1851 CPU Water Black, RGB Lighting,
    £169.99
    Incl. VAT
    In Stock
    Alphacool Core 1 Aurora ARGB CPU Water Block - White
    Alphacool Core 1 Aurora ARGB CPU Water Block - White
    COO-ACL-08498
    (0)
    CPU Water Block, ARGB Lighting, White, Latest Intel and AMD Socket Support
    £124.99
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Velocity3 D-RGB Plexi CPU Water Block - 1700/1851/AM5
    EK Water Blocks EK-Quantum Velocity3 D-RGB Plexi CPU Water Block - 1700/1851/AM5
    COO-EKW-03865
    (0)
    Velocity3 Range, CPU Water Block, RGB Lighting, Suitable for 1851 / 1700 and AM5 sockets, 2 Year Warranty
    £119.99
    Incl. VAT
    In Stock
    Thermal Grizzly Mycro Pro DRGB CPU Water Block - AM5 / AM4
    Thermal Grizzly Mycro Pro DRGB CPU Water Block - AM5 / AM4
    COO-TGZ-07722
    (0)
    Cooling block for AMD CPUs, Compatible with AM5 & AM4 sockets, 0.2mm thick microfins, Integrated filter, RGB lighting
    £119.99
    Incl. VAT
    In Stock
    Thermal Grizzly Mycro Direct-Die Pro V1 DRGB CPU Water Block - Intel LGA1700
    Thermal Grizzly Mycro Direct-Die Pro V1 DRGB CPU Water Block - Intel LGA1700
    COO-TGZ-03147
    (0)
    TG-MY-DD-P-RGB-i-V1, CPU Water Block, DRGB Lighting, Compatible with Intel 12th, 13th and 14th Gen CPU's
    £109.99
    Incl. VAT
    In Stock
    Alphacool Core 1 CPU Water Block - White
    Alphacool Core 1 CPU Water Block - White
    WC-0DG-AC
    (0)
    CPU Water Block, None RGB White, Latest Intel and AMD Socket Support
    £104.99
    Incl. VAT
    In Stock
    Alphacool Core 1 LT CPU Water Block - Black
    Alphacool Core 1 LT CPU Water Block - Black
    COO-ACL-08499
    (0)
    CPU Water Cooler, Compatible with AMD and Intel Sockets
    £71.99
    Incl. VAT
    In Stock
    Alphacool Core RX 9070 XT Asrock Steel Legend Graphics Card Water Block
    Alphacool Core RX 9070 XT Asrock Steel Legend Graphics Card Water Block
    COO-ACL-05437
    (0)
    Compatible with ASRock AMD Radeon™ RX 9070 XT Steel Legend 16GB
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core Geforce RTX 5080 ASUS ROG Astral Graphics Card Water Block
    Alphacool Core Geforce RTX 5080 ASUS ROG Astral Graphics Card Water Block
    COO-ACL-08528
    (0)
    Alphacool full-block water cooler for Asus ROG Astral 5080 graphics cards, chrome-plated copper heatsink, with backplate
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5090 Zotac Solid + AMP ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5090 Zotac Solid + AMP ARGB Graphics Card Water Block
    COO-ACL-04410
    (0)
    5090 Water Block, Compatible with certain ZOTAC Solid + AMP 5090 Cards, 3 year Warranty
    £199.99
    Incl. VAT
    In Stock
    Corsair Hydro Series iCUE LINK XC7 RGB ELITE LCD CPU Water Block
    Corsair Hydro Series iCUE LINK XC7 RGB ELITE LCD CPU Water Block
    COO-CRS-00710
    (0)
    CPU Water Block, LCD DIsplay Screen, Intel Socket 1700, AMD AM4 and AM5 Support, 2 Year Warranty
    £179.99
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5080 TUF ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5080 TUF ARGB Graphics Card Water Block
    COO-ACL-04396
    (0)
    5080 Water Block, Compatible with certain ASUS TUF 5080 Cards, 3 year Warranty
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5090 ROG Astral ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5090 ROG Astral ARGB Graphics Card Water Block
    COO-ACL-04408
    (1)
    5090 Water Block, Compatible with certain ASUS ROG Astral 5090 Cards, 3 year Warranty
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core Geforce RTX 5090 Gigabyte Gaming Graphics Card Water Block
    Alphacool Core Geforce RTX 5090 Gigabyte Gaming Graphics Card Water Block
    COO-ACL-08529
    (0)
    Water block for the Gaming and Windforce designs of the Gigabyte GeForce RTX 5090, top made of transparent acrylic, integrated ARGB lighting with eleven LEDs, cooling surface made of chrome-plated copper
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core Geforce RTX 5080 ASUS Prime Graphics Card Water Block
    Alphacool Core Geforce RTX 5080 ASUS Prime Graphics Card Water Block
    COO-ACL-08526
    (0)
    GPU water cooler for ASUS GeForce RTX 5080 Prime, copper block, ten ARGB LEDs, 0.4 mm fin thickness, including backplate
    £199.99
    Incl. VAT
    In Stock
    Save 17%
    Alphacool Intel Arc Pro B60 Creator Graphics Card Water Block
    Alphacool Intel Arc Pro B60 Creator Graphics Card Water Block
    COO-ACL-08613
    (0)
    ASRock Creator Intel Arc Water Block, 2 Year Warranty
    Price reduced from £279.95 to £229.99
    Incl. VAT
    In Stock
    Alphacool Core RX 9070 XT XFX Swift Gaming Graphics Card Water Block
    Alphacool Core RX 9070 XT XFX Swift Gaming Graphics Card Water Block
    COO-ACL-08530
    (0)
    GPU water cooler for XFX Quicksilver/Swift RX 9070 graphics cards, with backplate and RGB lighting
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core Geforce RTX 5080 ZOTAC Solid Core Graphics Card Water Block
    Alphacool Core Geforce RTX 5080 ZOTAC Solid Core Graphics Card Water Block
    COO-ACL-08527
    (0)
    GPU water cooler, for RTX 5080 / 5070 / Ti Solid Core, copper block, ten ARGB LEDs, 0.4 mm fin thickness, incl. backplate
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5080 Suprim + Vanguard ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5080 Suprim + Vanguard ARGB Graphics Card Water Block
    COO-ACL-04393
    (0)
    5080 Water Block, Compatible with Certain MSI 5080 Cards, 3 year Warranty
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5090 ASUS TUF ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5090 ASUS TUF ARGB Graphics Card Water Block
    COO-ACL-04397
    (0)
    5090 Water Block, Compatible with certain ASUS TUF 5090 Cards, 3 year Warranty
    £199.99
    Incl. VAT
    In Stock
    Alphacool ES GeForce RTX 5080 Reference Single Slot Graphics Card Water Block - Carbon
    Alphacool ES GeForce RTX 5080 Reference Single Slot Graphics Card Water Block - Carbon
    COO-ACL-04401
    (0)
    5080 Water Block, Compatible with certain Reference 5080 Cards, Single Slot Design, 3 year Warranty
    £289.99
    Incl. VAT
    In Stock
    Alphacool Core GeForce RTX 5080 Zotac ARGB Graphics Card Water Block
    Alphacool Core GeForce RTX 5080 Zotac ARGB Graphics Card Water Block
    COO-ACL-04412
    (0)
    Precision water block for Zotac RTX 5080 and RTX 5070 Ti Solid and AMP GPUs, Transparent acrylic top, Four G1/4-inch ports, Integrated ARGB lighting, Black aluminium backplate
    £199.99
    Incl. VAT
    In Stock
    Alphacool Core Geforce RTX 5080/5070Ti GamingPro ARGB Graphics Card Water Block
    Alphacool Core Geforce RTX 5080/5070Ti GamingPro ARGB Graphics Card Water Block
    COO-ACL-04618
    (0)
    GPU Water Block, Suitable for Pailt 5080 and 5070 Ti Gaming Cards
    £199.99
    Incl. VAT
    In Stock
    Save 12%
    Barrow OLED Display CPU Waterblock with 17w PWM Pump Intel - Clear / Black
    Barrow OLED Display CPU Waterblock with 17w PWM Pump Intel - Clear / Black
    COO-BAR-01418
    (0)
    CPU Water Block, Pump Included, OLED Display, 960LPH, Intel Socket Support
    Price reduced from £149.99 to £130.79
    Incl. VAT
    In Stock
    Barrow CPU Water Block with OLED Display for Intel Only - Black
    Barrow CPU Water Block with OLED Display for Intel Only - Black
    COO-BAR-01415
    (1)
    CPU Water Block, OLED Display, Intel Support
    £69.95
    Incl. VAT
    In Stock
    Save 10%
    Barrow NVIDIA RTX 5090 MSI VENTUS, aRGB Graphics Card Waterblock + Backplate
    Barrow NVIDIA RTX 5090 MSI VENTUS, aRGB Graphics Card Waterblock + Backplate
    COO-BAR-05554
    (0)
    BS-MSV5090-PA, Full GPU Water Block, Compatible with Select MSI Ventus cards, RGB Lighting
    Price reduced from £149.99 to £134.99
    Incl. VAT
    In Stock
    Save 14%
    Bitspower Summit Revo Intel 1700 Edition CPU Water Block
    Bitspower Summit Revo Intel 1700 Edition CPU Water Block
    COO-BTP-01900
    (0)

    Bitspower CPU Block Summit Revo Intel Edition(12th/13th/14th Gen Intel CPU,LGA1700)

    Bitspower presents a revolutionary CPU water block - the Summit Revo, a cutting-edge water block that combines new concepts with innovative design. Not only does its appearance evoke a refreshing feeling, but its thermal performance also excels in meeting the challenges posed by new-generation CPUs.

    Upon inspecting the exterior of the Bitspower CPU Block Summit Revo, one can readily observe the absence of outlet holes on its main body. This is a carefully crafted design that utilizes the structure of the motherboard to guide the water flow to the backside of the motherboard, where multiple outlet holes are strategically placed for user convenience. This innovative design ensures that the top surface of the water block remains free of any protruding structures. If you appreciate a clean visual aesthetic, this cooling solution will be your top choice. Alternatively, if you enjoy personalization in design, this water block provides greater creative freedom.

    The unique external design does not compromise the performance of this water block. Adhering to consistent design principles, it features a copper base plate, high-density heat sink fins, and a water injection design, all contributing to providing the best cooling solution for new-generation CPUs. Whether you seek a revolutionary CPU water block excelling in aesthetics and performance, the Bitspower CPU Block Summit Revo is an absolute must-have.

    Included :
    - 1set of Mounting Screws/Accessories
    - Dimension(LxWxH) : 111.4x108x73.5 MM
    - INTEL: LGA1700

    Price reduced from £209.99 to £179.99
    Incl. VAT
    In Stock

    Water Blocks


    Alphacool Eisblock XPX Aurora CPU Water Block - Plexi Black Digital RGB

    Level up your gaming PC’s cooling performance, by equipping it with Water Blocks from Barrow, Phanteks, Thermal Grizzly, Corsair, EK Water Blocks, and more. A water block is a vital component in a custom loop, designed to facilitate efficient heat transfer between key hardware and your coolant. Typically, a water block consists of a copper cold plate, inner housing that has coolant channels, inlet and outlet ports, and a protective casing. Many water blocks feature a micro-fin array milled directly into the cold plate to maximise its surface area, ensuring efficient heat dissipation can occur. Water blocks are available in a range of styles and finishes to pair with your favourite hardware and match your unique aesthetic.


    Types of Water Blocks

    Water blocks come in all manners of shapes and sizes, designed to be paired with a wide variety of hardware. Some of the most common types are:

    • CPU Blocks: These water blocks are designed to maintain your CPU at optimum temperatures. Most models will mount on top of your processor’s IHS, offering a highly efficient cooling method. Easy to install, these use the same mounting hardware found with AIO and air coolers. Alternatively, there are CPU blocks that can be mounted directly to the die of your processor, delivering the ultimate cooling performance but requiring more experience.
    • Monoblock: In addition to cooling your processor, a Monoblock makes contact with components around the CPU socket. As such, these blocks are much larger than a standard CPU block but will typically utilise the same mounting hardware. This type of cooling is generally used by overclocking enthusiasts, as it allows for more power delivery to the CPU.
    • GPU Block: A GPU block will replace the existing cooling hardware your graphics card has, requiring you to make modifications. A GPU block will typically cool both the graphical processor and the surrounding components, such as VRAM and power delivery.
    • M.2 SSD Blocks: The latest generations of M.2 SSDs are capable of reaching lightning-fast data transfer rates, which comes at the cost of higher temperatures. As such, M.2 water blocks are designed to effectively dissipate this waste heat, allowing your storage drives to operate at maximum performance for longer.

    PC Modding with OcUK: Custom Water-Cooling

    Want to Read More?

    A water block is a vital part of your cooling loop, but what else do you need? We explore everything you need to know about water-cooling on the Overclockers UK blog.

    Read More

    Water Block FAQ


    What brands of water blocks does Overclockers UK stock?

    Here at Overclockers UK, you can find water blocks from manufacturers such as EK Water Blocks, Phanteks, Barrow, Corsair, and more.

    What hardware is my water block compatible with?

    The most common water blocks available are CPU and GPU blocks, designed specifically to cool these components. Water blocks feature unique form factors designed to deliver optimum cooling performance for specific hardware models.

    Do water blocks come with mounting hardware?

    Many water blocks include the mounting hardware you need to install them, such as screws, tools, and even thermal paste. Extra hardware may be required if you are building a custom loop.

    Do I need a water block for my gaming PC?

    A water block is a key component in a water-cooling loop. This makes them the perfect choice for high-performance computers equipped with top-tier hardware. However, if your PC features less powerful components, you can achieve excellent results with an AIO or air cooler.

    How often should I clean my water block?

    We recommend regularly inspecting your water block and custom loop for corrosion and bacterial build up. You should aim to perform maintenance, such as flushing and replacing your coolant, every six to twelve months to ensure your loop is performing optimally.