PC water blocks

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Water blocks - Cheap Water block Deals | Currys Find the perfect Water blocks for you in our full PC fans and coolers range here at Currys. Shop online for delivery or order & collect.
*Spread the cost. £99 minimum spend applies. Representative example:
29.9% APR Representative (variable)
29.9% Interest rate (variable)
£1,200 Assumed Credit Limit
Credit, offers and APR are subject to status and determined by the lender. 18+. Requires a running Currys flexpay credit account. Promotional interest rates may be offered on selected products from time to time. Minimum spend & exclusions apply. Missed payments may incur late fees/charges and impact your credit file. Monthly prices displayed are based on 29.9% Representative APR (variable). Currys Group Limited is a credit broker under exclusive arrangements with the lender Creation Consumer Finance Ltd. Authorised & regulated by the Financial Conduct Authority.

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Discover our range of PC water blocks

Water blocks are an essential part of any custom PC liquid cooling setup. They play a crucial role in transferring heat away from your system's most demanding components - typically the CPU and GPU - so that your PC can run smoothly under pressure. Whether you're building a powerful gaming machine or a professional workstation, installing a water block can significantly enhance thermal performance and overall system stability.

Popular models such as EK Water Blocks are designed to fit directly over processors and graphics cards. These water blocks absorb heat and transfer it into a coolant loop, where the heat is then dissipated via radiators. CPU water blocks, in particular, are engineered with materials like copper or nickel to maximise thermal conductivity and reduce the risk of overheating. For compact systems, a 240mm liquid cooler paired with a high-quality CPU block offers excellent cooling in a space-saving design.

Beyond performance, liquid cooling systems equipped with water blocks also offer quieter operation compared to traditional air cooling. This is especially beneficial in home offices or studio environments where noise levels matter. Additionally, liquid cooling helps prevent thermal throttling, allowing your system to perform consistently over longer periods of use.

When selecting the best water block, material choice is important. Copper remains the most common due to its excellent heat transfer capabilities, but nickel-plated options provide added corrosion resistance. Some high-end models even include transparent tops or RGB lighting for visual appeal, adding both form and function to your build.

What is a water block for PC?

A water block transfers heat from a high-temperature component, like a CPU or GPU, to the coolant in a liquid cooling loop.

Is PC water cooling worth it?

Yes. It's quieter, more efficient, and helps prevent thermal issues in high-performance systems.

How long does PC water cooling last?

With proper maintenance and periodic coolant checks, a water cooling system can last for several years.

What is the best material for a CPU water block?

Copper is preferred for its excellent thermal properties, although nickel and silver are also used for specific setups

    *Representative example

  • 29.9% APR
    Representative (variable)
  • 29.9%
    interest rate (variable)
  • £1,200
    Assumed Credit Limit

Credit, offers and APR are subject to status and determined by the lender. 18+. Requires a Currys flexpay running credit account. Promotional interest rates may be offered on selected products from time to time. Minimum spend & exclusions apply. Missed payments may incur late fees/charges and impact your credit file.
Currys Group Limited is a credit broker under exclusive arrangements with the lender Creation Consumer Finance Ltd. Authorised & regulated by the Financial Conduct Authority.
Buy now, pay later (BNPL): Pay full balance by the end of the BNPL promotion period to avoid interest. Any balance left to pay at the end of your BNPL promotion period will incur interest from the date of your purchase.