Water Cooling Fittings

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469 Items found
XSPC G1/4" to 1/2" ID, 3/4" OD Compression Fitting (Chrome) V2
WC-414-XS
XSPC 1/4" Thread Compression Fitting for 1/2" ID - 3/4" OD Tubing, Chrome
£4.99 (incl. VAT)
fiber_manual_record In stock
XSPC G1/4" to 1/2" Barb Fitting (Matte Black)
WC-42B-XS
Brass Fitting, Matte Black Electroplated Finish, For 1/2" ID or 7/16" ID Tubing (12.7mm ID or 11.1mm ID), G1/4" Thread
£1.79 (incl. VAT)
fiber_manual_record In stock
XSPC G1/4" to 3/8" ID, 5/8" OD Compression Fitting (Matte Black) V2
WC-42E-XS
Brass Fitting, Matte Black Electroplated Finish, Black Chrome Finish, For 3/8" ID, 5/8" OD Tubing (10mm ID, 16mm OD), Low profile design, G1/4" Thread, Easy tool free coin installation
£4.99 (incl. VAT)
fiber_manual_record In stock
Alphacool Eiszapfen Male Quick Release Connector - Chrome
WC-097-AC
Make your water cooling system higher quality more convenient and more comfortable with your new Alphacool Eiszapfen quick release coupling or plug. Standard G1/4" Thread.
£14.99 (incl. VAT)
fiber_manual_record In stock
Alphacool Eiszapfen Female Quick Release Connector - Chrome
WC-099-AC
Make your water cooling system higher quality more convenient and more comfortable with your new Alphacool Eiszapfen quick release coupling or plug. Standard G1/4" Thread.
£16.99 (incl. VAT)
fiber_manual_record In stock
Alphacool Eiszapfen Female Quick Release Connector - Deep Black
WC-09A-AC
Make your water cooling system higher quality more convenient and more comfortable with your new Alphacool Eiszapfen quick release coupling or plug. Standard G1/4" Thread.
£12.95 (incl. VAT)
fiber_manual_record In stock
£11.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Artemis Rotary Extender - Matt Black
COO-BTP-01902
Brass 90° rotary fitting, CNC machined, Integrated O-ring, G1/4 connector, High compatibility, Matte black design
£8.99 (incl. VAT)
fiber_manual_record In stock
£14.99 (incl. VAT)
fiber_manual_record In stock
Barrow 360 Rotary Offset Adapter Fitting - Silver
WC-062-BA
Extension of Barrow, With 21 mm depth, With two G1/4 inch threads (1x AG 1x IG), Offset by 6 mm, Made of anodized brass
£10.99 (incl. VAT)
fiber_manual_record In stock
Barrow 7.5mm Male to Female Extension Adapter - Silver
WC-08K-BA
Extension of Barrow, With 7.5mm length, With two G1/4 inch threads (1x AG 1x IT), Made of nickel-plated brass
£2.39 (incl. VAT)
fiber_manual_record In stock
Bitspower 45 Degree Rotary Extension Fitting - Black
WC-218-BP
These new G 1/4" 45 degree angle adapters are perfect for tight spaces and change the direction of your water input or output without affecting flow.
£12.95 (incl. VAT)
fiber_manual_record In stock
XSPC G1/4" to 3/8" ID, 1/2" OD Compression Fitting (Black Chrome) V2
WC-411-XS
Black Chrome Finish, For 3/8" ID, 1/2" OD Tubing (10mm ID, 13mm OD), Low profile design, G1/4" Thread, Easy tool free coin installation
£4.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Artemis Manual AIR-Exhaust Fitting - Sandblast Silver
COO-BTP-01906
Air release valve, Designed for custom water cooling loops, Compact design, G1/4 inch thread, Made from high-quality copper, Sandblast Silver
£13.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Touchaqua Low-Profile Stop Fitting - Silver (2 PCS )
WC-68P-BP
Bitspower Touchaqua sealing plugs, Flat design, For G1 / 4 inch thread, 2-pack, Silver (Glorious Silver)
£3.95 (incl. VAT)
fiber_manual_record In stock
XSPC G1/4" Male to Female Rotary Fitting (Matte Black)
WC-435-XS
XSPC G1/4" Male to Female Rotary Fitting for use with your Watercooling setup
£4.99 (incl. VAT)
fiber_manual_record In stock
Barrow Special Adapter 45 Degree G1/4 Inch IG to G1/4 Inch IG - Black
COO-BAR-06291
45-degree adapter in black, for custom water cooling systems, G1/4 inch male to G1/4 inch female
£6.95 (incl. VAT)
fiber_manual_record In stock
Brass hard tube 14mm AD 220x300mm 90 degrees - Pack of 4 - Silver
COO-BTP-01237
BP-BHT14SL-90R, 14mm Tubing, 90 Degree Bend, Silver, Pack of 4
£59.99 (incl. VAT)
fiber_manual_record In stock
Alphacool Eiszapfen 45 Degree Angled Rotary Adaptor - Deep Black
WC-08M-AC
Angled Fitting Extension, Deep Black Colour, Standard G 1/4" Connection
£8.99 (incl. VAT)
fiber_manual_record In stock
Alphacool Eiszapfen Extension G1/4 AG on G1/4 IG - Chrome
WC-0A5-AC
Extension Fitting, Standard G1/4" Thread, Chrome
£3.49 (incl. VAT)
fiber_manual_record In stock
Barrow 40mm Male to Female Extension Adapter - Silver
WC-05U-BA
Extension of Barrow, With 40 mm length, With two G1/4 inch threads (1x AG 1x IT), Made of colored brass
£4.99 (incl. VAT)
fiber_manual_record In stock
Barrow 20mm Male to Female Extension Adapter - Silver
WC-05G-BA
Extension of Barrow, With 20 mm length, With two G1/4 inch threads (1x AG 1x IG), Made of colored brass
£3.49 (incl. VAT)
fiber_manual_record In stock
Barrow 5mm Male to Male Mini Fitting - Black
WC-07Y-BA
Straight extension, Two G1/4 inch external threads
£2.39 (incl. VAT)
fiber_manual_record In stock
Corsair Hydro X Series 45° Rotary Adapter Dual Pack - Gold (CX-9055003-WW)
WC-00W-CS
CX-9055003-WW, Gold Angled Fittng, 2 Per Pack, 2 Year Warranty
£24.95 (incl. VAT)
fiber_manual_record In stock
Barrow Multi-link Adapter Rotatable 90 Degree to 14mm Hard Tube Fitting - Black
WC-04S-BA
Rotatable 90 degree multi-link adapter, With G1/4 inch thread, 14mm connection
£10.99 (incl. VAT)
fiber_manual_record In stock
Barrow G/14 Stop Fitting - Silver
WC-08X-BA
Closing plugs in Silver, For G1/4 inch thread, Made of brass, Closes unused connections
£1.99 (incl. VAT)
fiber_manual_record In stock
Barrow Multi-link Adapter Rotatable 90 Degree to 12mm Hard Tube Fitting - White
WC-047-BA
Rotatable 90 degree multi-link adapter, With G1/4 inch thread, 12mm connection
£8.99 (incl. VAT)
fiber_manual_record In stock
Barrow Multi-link Adapter Rotatable 90 Degree to 12mm Hard Tube Fitting - Black
WC-049-BA
Rotatable 90 degree multi-link adapter, With G1/4 inch thread, 12mm connection
£8.99 (incl. VAT)
fiber_manual_record In stock
Barrow 10K Temperature Sensor Stop Plug - Silver
WC-069-BA
Temperature sensor for water cooling, for G1/4 inch thread
£3.95 (incl. VAT)
fiber_manual_record In stock
Bitspower 14mm Hard Tube Fitting - Black
WC-635-BP
Tube adapter with 1/4-inch thread for connecting acrylic tubes and crystal link tubes with 14 mm outer diameter - matt black
£4.99 (incl. VAT)
fiber_manual_record In stock
EK Water Blocks EK-Quantum Torque STC 10/16 Soft Tube Compression Fitting - Satin Titanium
WC-A0H-EK
Compression fitting, No branding, Suitable for PVC / EPDM / Norprene and Silicon Tubing, 10mm ID and 16mm OD, Satin Titanium Design
£6.95 (incl. VAT)
fiber_manual_record In stock
Barrow Compression Fitting - 13/10mm, black
COO-BAR-06293
Compression fitting, for hoses with 13/10 mm outer or inner diameter, 1x G1/4 inch connection for connection to water cooling component
£2.99 (incl. VAT)
fiber_manual_record In stock
Barrow 360 Rotary Offset Adapter Fitting - Black
WC-061-BA
Extension of Barrow, With 21 mm depth, With two G1/4 inch threads (1x AG 1x IG), Offset by 6 mm, Made of anodized brass
£10.99 (incl. VAT)
fiber_manual_record In stock
Bitspower 90 Degree Rotary Extension Fitting - Black
WC-215-BP
These new G 1/4" 90 degree angle adapters are perfect for tight spaces and change the direction of your water input or output without affecting flow
£11.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Touchaqua 20mm Extender Fitting - Silver (2 PCS )
WC-67Z-BP
Straight 20 mm extension from Bitspower Touchaqua, 1x G1 / 4 inch external and 1x G1 / 4 inch internal thread, 2 pack, Silver (Glorious Silver)
£4.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Touchaqua 10mm Extender Fitting - Silver (2 PCS )
WC-67V-BP
Straight 10 mm extension from Bitspower Touchaqua, 1x G1 / 4 inch external and 1x G1 / 4 inch internal thread, 2 pack, Silver (Glorious Silver)
£5.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Silver Shining Male to Male Rotary Adapter
WC-141-BP
This is one of the most handiest fittings imaginable for linking two G 1/4" threaded water cooling parts.
£8.99 (incl. VAT)
fiber_manual_record In stock
Bitspower Touchaqua Fluid Drain Valve Fitting - Silver
WC-68T-BP
Bitspower Touchaqua water outlet, For G1 / 4 inch internal thread, 2-pack, Silver (Glorious Silver)
£15.95 (incl. VAT)
fiber_manual_record In stock
Barrow G/14 Stop Fitting - Black
WC-08W-BA
Closing plugs in black, For G1/4 inch thread, Made of brass, Closes unused connections
£2.50 (incl. VAT)
fiber_manual_record In stock
Save 21%
Barrow 16mm Hardtube Fitting - Black
WC-036-BA
Black fitting, With G1/4 inch thread, For hard tubes, With 16mm outer diameter
£4.99 £3.95 (incl. VAT)
fiber_manual_record In stock

Water Cooling Fittings


EK Water Cooling Fitting

Get the perfect fit for your custom loop with our complete range of water cooling fittings. Whether you’re working with soft or hard tubing, these high-performance fittings include everything from compression and push-fit designs to rotary and angled adapters, helping you create a clean, secure, and leak-free water cooled PC. Water cooling fittings make it easy to route coolant exactly where you need it, ideal for connecting to GPUs, distro plates, and into tight spaces. With a huge variety of sizes, finishes, and styles from trusted brands like EK, Barrow, Corsair, and Bitspower, you can fine-tune your loop’s layout while keeping everything locked in place.


Understanding G1/4" and Tubing Compatibility

Most modern water cooling fittings use the industry-standard G1/4" thread, ensuring broad compatibility across radiators, CPU blocks, reservoirs, and pumps. However, it’s just as important to match your fittings to your tubing, whether that’s 10/13mm soft tubing or 14mm OD hard tubing. Compression fittings offer a secure grip for soft tubing, while hard tube fittings provide a snug seal with rigid acrylic or PETG. Always double-check inner and outer diameters to guarantee a leak-free connection throughout your custom loop.

To help perfect your loop’s layout and function, fittings come in a variety of specialised designs.

  • Compression fittings create a secure and watertight seal by gently sandwiching your tubing between a ferrule and threaded collar, making them ideal for both soft and hard hose tubing.
  • Rotary fittings feature a rotating collar that allows you to twist and angle your connection without stressing the tubing, perfect for tight or complex builds.
  • Angled (90°/45°) fittings provide built-in bends, offering clean, space-saving routes around corners and help to maintain sharp lines and uncluttered tubing runs.


Want to Read More?

Time to add water cooling to your PC, but unsure where to start? The Overclockers UK Blog has put together this guide answering the commonly asked questions.

Read More

Water Cooling Fittings FAQ


What types of water cooling fittings are available?

Overclockers UK stocks a huge range of water cooling fittings including compression, barb, rotary, angled, and quick-release fittings to suit different loop set-ups.

How do I choose the right size water cooling fittings for my PC?

Choose fittings that match your tubing outer diameter (OD), commonly 10mm or 12mm for soft tubing, and 12mm or 14mm OD for hard tubing to ensure a secure and leak-free connection.

Can I mix different brands of water cooling fittings in my custom loop?

Yes, you can mix brands as long as the fittings use compatible sizes and thread standards for your tubing and components.




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