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    Water Cooling

    964 Results
    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 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 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
    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
    EK Water Blocks EK-CryoFuel Clear 1L Premix Watercooling Fluid - 1 Litre
    EK Water Blocks EK-CryoFuel Clear 1L Premix Watercooling Fluid - 1 Litre
    WC-9P9-EK
    (0)
    The EK-CryoFuel is a new revolutionary coolant for PC liquid cooling systems.
    £15.95
    Incl. VAT
    In Stock
    XSPC G1/4" to 1/2" Barb Fitting (Black Chrome)
    XSPC G1/4" to 1/2" Barb Fitting (Black Chrome)
    WC-099-XS
    (0)
    - Black Chrome Finish, For 1/2" ID or 7/16" ID Tubing (12.7mm ID or 11.1mm ID) G1/4" Thread
    £1.79
    Incl. VAT
    In Stock
    Alphacool 90 Degree Angled Rotary Fitting - Deep Black
    Alphacool 90 Degree Angled Rotary Fitting - Deep Black
    WC-08P-AC
    (0)
    Angled Fitting Extension, Deep Black Colour, Standard G 1/4" Connection
    £5.99
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Torque HDC 12mm Hard Tubing Fitting - Black
    EK Water Blocks EK-Quantum Torque HDC 12mm Hard Tubing Fitting - Black
    WC-9TH-EK
    (0)
    EK-Torque HDC 12 fittings are EK's new minimalistic 12mm hard-tube compression fittings designed for use with solid tubing such as Acrylic and PETG.
    £6.95
    Incl. VAT
    In Stock
    Thermal Grizzly DeltaMate HT14 Hard Tube Matt Nickel Fitting - 14mm
    Thermal Grizzly DeltaMate HT14 Hard Tube Matt Nickel Fitting - 14mm
    COO-TGZ-07519
    (0)
    Water cooling fittings, Male G1/4" thread, EPDM O-rings, Precision machined from brass, Designed for hard tubing with a 14mm outer diameter
    £6.95
    Incl. VAT
    In Stock
    Save 30%
    Mayhems - PC Coolant - Ultra Pure H2O - High Purity, Low Electrical Conductivity, 1 Litre
    Mayhems - PC Coolant - Ultra Pure H2O - High Purity, Low Electrical Conductivity, 1 Litre
    WC-12R-MH
    (1)
    The Ultra Pure fluid is great for cleaning radiators and your loop before filling.
    Price reduced from £9.95 to £6.95
    Incl. VAT
    In Stock
    EK Water Blocks EK-Tube ZMT Matte Black 16/10 mm - 1m
    EK Water Blocks EK-Tube ZMT Matte Black 16/10 mm - 1m
    WC-535-EK
    (2)
    EK ZMT (Zero Maintainance Tubing) is a high quality, zero maintainance industrial grade EPDM rubber tubing in stylish matte black. Excellent resistance to aging, weathering, ozone and UV!
    £7.99
    Incl. VAT
    In Stock
    Save 73%
    Bitspower Artemis Rotary Compression Fitting CC3 For ID 3/8" OD 5/8" Tube - Sandblast Silver
    Bitspower Artemis Rotary Compression Fitting CC3 For ID 3/8" OD 5/8" Tube - Sandblast Silver
    COO-BTP-01909
    (0)
    Price reduced from £14.99 to £3.95
    Incl. VAT
    In Stock
    Corsair Hydro X Series XL5 Performance Premixed Clear Fluid - 1 Litre (CX-9060001-WW)
    Corsair Hydro X Series XL5 Performance Premixed Clear Fluid - 1 Litre (CX-9060001-WW)
    WC-00N-CS
    (0)
    CX-9060001-WW, Clear Fluid, 1 Litre
    £14.99
    Incl. VAT
    In Stock
    Koolance QD3 Quick Connector Straight Female to G1/4 Inch Male - No-Spill, Silver
    Koolance QD3 Quick Connector Straight Female to G1/4 Inch Male - No-Spill, Silver
    COO-KLN-06438
    (0)
    No-spill quick connector (QD3), straight orientation, female, brass, compression fitting for G1/4-mm tube
    £19.99
    Incl. VAT
    In Stock
    Corsair Hydro X Series XF Hardline 14mm White Fittings - Four Pack (CX-9052013-WW)
    Corsair Hydro X Series XF Hardline 14mm White Fittings - Four Pack (CX-9052013-WW)
    WC-01C-CS
    (0)
    CX-9052013-WW, Hard Line Fitting, 4 x 14mm OD Fittings, White, 2 year Warranty
    £24.95
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Torque STC 12/16mm Soft Tubing Compression Fitting - Black
    EK Water Blocks EK-Quantum Torque STC 12/16mm Soft Tubing Compression Fitting - Black
    WC-9UZ-EK
    (0)
    EK-Torque STC 12/16 fittings are EK's new minimalistic 12/16mm (ID/OD) soft-tube compression fittings designed for use with various flexible soft tubing.
    £7.99
    Incl. VAT
    In Stock
    Save 71%
    Bitspower Artemis Rotary 90-Degree Extender - Sandblast Silver
    Bitspower Artemis Rotary 90-Degree Extender - Sandblast Silver
    COO-BTP-01922
    (0)
    Water cooling fitting with 90-degree angle, Rotatable design, G1/4-inch male thread to 90-degree G1/4-inch female thread, Made from Copper, Stylish sandblast silver finish
    Price reduced from £13.99 to £3.95
    Incl. VAT
    In Stock
    Save 72%
    Optimus Hardtube 12mm Satin Black Fitting
    Optimus Hardtube 12mm Satin Black Fitting
    COO-OPT-01848
    (0)
    Nickel-plated hard tube fitting from Optimus, For tubes with 12 mm
    Price reduced from £10.99 to £2.99
    Incl. VAT
    In Stock
    Save 69%
    Bitspower None Chamfer Brass Hard Tubing 12mm OD, 500mm - carbon black
    Bitspower None Chamfer Brass Hard Tubing 12mm OD, 500mm - carbon black
    WC-694-BP
    (0)
    Black Carbon Tubing, Hard Tube, 12mm, Comaptible with 12mm Hard Tube Fittings
    Price reduced from £9.95 to £2.99
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Torque STC 10/16mm Soft Tubing Compression Fitting - Black
    EK Water Blocks EK-Quantum Torque STC 10/16mm Soft Tubing Compression Fitting - Black
    WC-9UP-EK
    (0)
    EK-Torque STC 10/16 fittings are EK's new minimalistic 10/16mm (ID/OD) soft-tube compression fittings designed for use with various flexible soft tubing
    £6.95
    Incl. VAT
    In Stock
    Save 36%
    Bitspower None Chamfer Crystal Link Tube OD 14mm - 1000mm
    Bitspower None Chamfer Crystal Link Tube OD 14mm - 1000mm
    WC-69D-BP
    (0)
    Bitspower OD14mm hard tube
    Price reduced from £3.95 to £2.50
    Incl. VAT
    In Stock
    Alphacool 16/10mm Deep Black Compression Fitting - Six Pack
    Alphacool 16/10mm Deep Black Compression Fitting - Six Pack
    WC-08X-AC
    (0)
    6 x 16/10mm Fittings, Simple Single Pack, Deep Black Colour, Suitable for 16/10mm Soft Tubing
    £31.00
    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
    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
    Alphacool 16/10mm Threaded Rotatable 90 Degree G1 / 4 Fitting - Black
    Alphacool 16/10mm Threaded Rotatable 90 Degree G1 / 4 Fitting - Black
    WC-0A2-AC
    (0)
    90 Degree Rotary Fitting, 16/10mm Compression Fitting, Suitable for 16/10mm Soft Tubing, Black
    £7.99
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Torque 7mm Static Male/Female Extender - Black
    EK Water Blocks EK-Quantum Torque 7mm Static Male/Female Extender - Black
    WC-9ZW-EK
    (0)
    Extender, 7mm Height, Male to Female Connection, Black
    £3.95
    Incl. VAT
    In Stock
    Alphacool D5 VPP Apex PWM Pump
    Alphacool D5 VPP Apex PWM Pump
    COO-ACL-04713
    (0)
    High-performance VPP ceramic pump, 340 l/h flow rate, 4.25 m delivery head, quiet operation, compatible with D5 form factor
    £69.95
    Incl. VAT
    In Stock
    Thermal Grizzly DeltaMate EPDM 13/10mm Soft Tubing - 3m
    Thermal Grizzly DeltaMate EPDM 13/10mm Soft Tubing - 3m
    COO-TGZ-09036
    (0)
    Soft tube made of EPDM, 10mm inner diameter, 13mm outer diameter, 3m length
    £12.95
    Incl. VAT
    In Stock
    Aqua Computer Temperature sensor internal/external thread G1/4
    Aqua Computer Temperature sensor internal/external thread G1/4
    WC-120-AQ
    (0)
    This temperature sensor has one G1 / 4 internal and external thread and is extremely space-saving, as it can be mounted directly on a CPU cooler or a radiator.
    £9.98
    Incl. VAT
    In Stock
    Save 33%
    EK Water Blocks EK-Quantum Torque Double Rotary 21mm Offset Fitting - Satin Titanium
    EK Water Blocks EK-Quantum Torque Double Rotary 21mm Offset Fitting - Satin Titanium
    WC-AE5-EK
    (0)
    EK Double Rotary Extender, Satin Titanium, Offset 21mm, 33mm Height
    Price reduced from £29.99 to £19.99
    Incl. VAT
    In Stock
    EK Water Blocks EK-Quantum Surface P360M Triple Fan Radiator - Black - 360mm
    EK Water Blocks EK-Quantum Surface P360M Triple Fan Radiator - Black - 360mm
    WC-AAU-EK
    (1)
    360mm Radiator, Comaptible with upto 6 x 120mm Fans, Black Colour, 44mm Thickness
    £124.99
    Incl. VAT
    In Stock
    Alphacool HF G1/4 Stop Plug - Deep Black
    Alphacool HF G1/4 Stop Plug - Deep Black
    COO-ACL-09273
    (0)
    Stop Fitting, G /14 Thread, Deep Black
    £1.49
    Incl. VAT
    In Stock
    EK Water Blocks EK-D5 PWM G3 Motor (12V DC Pump Motor)
    EK Water Blocks EK-D5 PWM G3 Motor (12V DC Pump Motor)
    WC-A6Y-EK
    (0)
    3831109848494, D5 PWM Pump, Sata Power, 4 Pin PWM Control, 2 Year Warranty
    £83.99
    Incl. VAT
    In Stock
    Mayhems - PC Coolant - X1 Premix - Eco Friendly Series, 1 Litre, Clear
    Mayhems - PC Coolant - X1 Premix - Eco Friendly Series, 1 Litre, Clear
    WC-035-MH
    (1)
    Mayhem’s are rapidly becoming the leading manufacturer of liquid cooling solutions in Europe. providing the water cooling community an expansive array of differing solutions and liquids
    £14.99
    Incl. VAT
    In Stock
    Alphacool Filling bottle Core 1000ml
    Alphacool Filling bottle Core 1000ml
    WC-0CN-AC
    (0)
    • Filling & draining possible with one tool
    • Easy filling possible even in the tightest spaces
    £5.99
    Incl. VAT
    In Stock
    Alphacool NexXxoS HPE-30 Full Copper 420mm Radiator
    Alphacool NexXxoS HPE-30 Full Copper 420mm Radiator
    WC-0D1-AC
    (0)
    Full Copper Radiator, 140mm Fan Design, Upto six fans, 18 FPI
    £129.95
    Incl. VAT
    In Stock
    Save 73%
    Bitspower Artemis Rotary Compression Fitting CC3 For ID 3/8" OD 5/8" Tube - Arctic White
    Bitspower Artemis Rotary Compression Fitting CC3 For ID 3/8" OD 5/8" Tube - Arctic White
    COO-BTP-01907
    (0)
    Price reduced from £14.99 to £3.95
    Incl. VAT
    In Stock
    Save 69%
    Bitspower Artemis Advanced Multi-Link For OD 16MM - Sandblast Silver
    Bitspower Artemis Advanced Multi-Link For OD 16MM - Sandblast Silver
    COO-BTP-01917
    (0)
    Copper fitting for 16mm (outer diameter) hard line tubing, Minimalist sandblast silver design, Magnetic ring for easy adjustment, Precisely manufactured, G1/4 connector
    Price reduced from £12.95 to £3.95
    Incl. VAT
    In Stock
    Barrow 16/12mm Rigid PETG Hard Tube 500mm - Clear
    Barrow 16/12mm Rigid PETG Hard Tube 500mm - Clear
    WC-09F-BA
    (0)
    PG1612-L, 500mm total (500mm), Hard Tube, Clear
    £3.95
    Incl. VAT
    In Stock
    Barrow Soft Tube 13/10mm Compression Fitting - Silver
    Barrow Soft Tube 13/10mm Compression Fitting - Silver
    WC-0CB-BA
    (0)
    Silver compression fitting, with G1/4 inch thread, for hoses with 13/10 mm OD/ID
    £2.99
    Incl. VAT
    In Stock

    Water Cooling


    Koolance QD3 Female Quick Disconnect No-Spill Coupling, Compression for 10mm x 13mm (3/8in x 1/2in)

    Take your PC’s performance and aesthetics to the next level with custom water cooling. Whether you’re chasing lower temps, silent operation, or a stunning showpiece PC, water cooling offers unbeatable flexibility and results. Overclockers UK stocks a whole host of water-cooling components compatible with the latest Intel, NVIDIA and AMD PC components. You can find CPU and GPU blocks, tubing, fittings, radiators, and reservoirs, all of which work in sync to keep your hardware cool under heavy loads. Plus, with options for soft and hard tubing, vibrant coolants, and powerful pumps, building your perfect loop has never been easier. Whether you're just starting out or you're a seasoned enthusiast, Overclockers UK has everything you need to design, customise, and maintain your ultimate water cooling set-up.


    Water-cooling Explained

    • CPU Water Blocks: These sit on top of your processor and transfer heat into the coolant, keeping your CPU running cool under pressure.
    • GPU Water Blocks: Designed to cool your graphics card, these are essential for high-end GPUs or overclocked set-ups where heat output is significant.
    • Radiators: Radiators dissipate heat from the coolant with the help of fans, keeping temperatures low and performance high.
    • Pumps: Pumps move the coolant through your loop, ensuring consistent flow and effective heat transfer across all components.
    • Reservoirs: Reservoirs hold excess coolant and make it easier to fill, bleed, and maintain your water cooling loop.
    • Tubing and Fittings: These connect every component, available in both soft and hard variants depending on your layout and aesthetics. Fittings ensure a secure, leak-free connection between components and come in various types like compression, rotary, and angled for added flexibility.
    • Coolant: Coolant flows through the entire system, with clear, dyed, or additive-enhanced fluids to match your build and prevent corrosion.
    • Distro Plates: Distro plates combine reservoirs and coolant channels into a single component, simplifying loop design and adding visual flair.
    • Quick Releases: Quick-release fittings allow for easy disconnection of components without draining the loop, ideal for upgrades and maintenance.
    • Monitoring Tools: Tools like flow meters, sensors, and temperature probes help you fine-tune performance and ensure optimal system health.

    Water Cooling FAQ

    Want to Read More?

    Ready to water cool your PC, but unsure where to start? This dedicated article on the Overclockers UK Blog has everything you need to know.

    Read More

    Water Cooling FAQ


    How effective is water cooling?

    Water cooling is highly effective, offering superior thermal performance and lower noise levels compared to traditional air cooling, especially in high-performance systems.

    Is water cooling really better than air cooling?

    Water cooling typically outperforms air cooling in heat dissipation and acoustic performance, making it ideal for overclocked CPUs, GPUs, and enthusiast-level gaming PCs.

    What do I need for a custom water cooling loop?

    A complete custom loop requires a CPU or GPU block, radiator, reservoir, pump, tubing, fittings, and coolant.

    Is custom water cooling hard to install?

    Custom water cooling can be complex for beginners, but with planning and the right tools, it’s a rewarding upgrade that offers excellent cooling performance and incredible style.