--- product_id: 595584630 title: "Mayhems - Ultra Pure H2O PC Coolant - Computer Water Cooling Fluid - Liquid Cooling, Distilled, High Purity, Low Electrical Conductivity, 1 Litre" brand: "mayhems" price: "€ 39.83" currency: EUR in_stock: true category: "Mayhems" url: https://www.desertcart.fr/products/595584630-mayhems-ultra-pure-h2o-pc-coolant-computer-water-cooling-fluid store_origin: FR region: France --- # Ultra pure H2O <2μS conductivity Advanced reverse osmosis tech Food-safe, low-leach packaging Mayhems - Ultra Pure H2O PC Coolant - Computer Water Cooling Fluid - Liquid Cooling, Distilled, High Purity, Low Electrical Conductivity, 1 Litre **Brand:** mayhems **Price:** € 39.83 **Availability:** ✅ In Stock ## Summary > 💧 Stay cool, stay pure — the secret weapon for next-level PC performance! ## Quick Answers - **What is this?** Mayhems - Ultra Pure H2O PC Coolant - Computer Water Cooling Fluid - Liquid Cooling, Distilled, High Purity, Low Electrical Conductivity, 1 Litre by mayhems - **How much does it cost?** € 39.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/595584630-mayhems-ultra-pure-h2o-pc-coolant-computer-water-cooling-fluid) ## Best For - mayhems enthusiasts ## Why This Product - Trusted mayhems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Freshness:** Store up to 2 years in cool, dark conditions—ready whenever you upgrade your rig. - • **Industry-Leading Purity:** Less than 2 microsiemens electrical conductivity ensures minimal corrosion and maximum system longevity. - • **Crystal-Clear Cooling Power:** Experience unmatched thermal efficiency with ultra-pure water engineered for elite PC liquid cooling. - • **Safe & Sustainable Packaging:** Food-grade bottles reduce chemical leaching, preserving purity and your peace of mind. - • **Seamless Concentrate Compatibility:** Perfectly blends with Mayhems coolant concentrates for a custom, high-performance cooling solution. ## Overview Mayhems Ultra Pure H2O is a premium distilled water specifically crafted for PC liquid cooling systems. Manufactured in the UK using advanced reverse osmosis and high-grade filtration, it delivers ultra-low electrical conductivity (<2μS) for superior thermal performance and corrosion resistance. Packaged in food-safe bottles to minimize contamination, this 1-litre coolant base pairs perfectly with Mayhems concentrates, offering a clean, reliable, and long-lasting solution for professional-grade water cooling loops. ## Description Product Description Mayhems Ultra Pure H2O Mayhems Ultra Pure H2O is a clean, highly purified water made specifically for the liquid cooling of computer systems. It is the perfect for combining with our concentrate products to create a functional coolant. Our Ultra Pure H2O is manufactured using advanced reverse osmosis technology to create some of the cleanest water you can buy. Because our liquid goes through a higher quality filtering processes than any other manufacturer in our industry our Ultra Pure H2O is the best option you can buy. This results in an average electrical conductivity mark of less than 2μS (micro siemens) or approximately 1 parts per million. The product is also made using food safe bottles meaning there is much less leakage of the components from the plastic bottle leaching into the water. This all gives you the knowledge that everything in our power has been done to be able to deliver the perfect liquids for any water cooling loop. There is no other water on the market as pure as Mayhems Ultra Pure H2O. Features & Benefits Ultra Pure water produced to the highest standards Highest coolant thermal performance when used with the correct additives Combines perfectly with Mayhems Coolant Concentrates Average Electrical Conductivity of less than 2μS or approximately 1 PPM. Food Safe bottles used Long storage lifetime of up to 2 years if kept in a cool dark environment away from direct sun light Manufactured in the UK to the highest quality standards Before Using Mayhems Ultra Pure H2O Mayhems Ultra Pure H2O is food safe, human safe and animal safe, however we do not recommend that you attempt to consume it. It has been specially made for cooling computer systems. ## Features - Mayhems Ultra Pure H2O is a clean, highly purified water made specifically for water cooled computer systems and loops. - Perfect for combining with concentrate products - Manufactured using advanced reverse osmosis technology to create some of the cleanest water you can buy - Goes through a very high quality filtering process - Average electrical conductivity mark of less than 2 microsiemens ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B72FDNL8 | | Best Sellers Rank | 119,995 in Automotive ( See Top 100 in Automotive ) 345 in Antifreeze & Coolants | | Brand | Mayhems | | Compatible Devices | Desktop | | Compatible devices | Desktop | | Cooling Method | Water | | Cooling method | Water | | Customer Reviews | 5.0 out of 5 stars 2 Reviews | | Item Weight | 1.04 Kilograms | | Manufacturer | Mayhems Solutions LTD | | Manufacturer Part Number | MH2O1L | | Material | Polycarbonate | | Model Number | MH2O1L | | Number of Items | 1 | | Power Connector Type | 4-Pin | | Power connector type | 4-Pin | | Unit Count | 1000.0 millilitre | | Voltage | 12 Volts | ## Product Details - **Brand:** Mayhems - **Compatible Devices:** Desktop - **Cooling Method:** Water - **Manufacturer:** Mayhems Solutions LTD - **Material:** Plastic - **Number of Items:** 1 - **Power Connector Type:** 3-Pin - **Unit Count:** 33.814 Fluid Ounces - **Voltage:** 12 Volts ## Images ![Mayhems - Ultra Pure H2O PC Coolant - Computer Water Cooling Fluid - Liquid Cooling, Distilled, High Purity, Low Electrical Conductivity, 1 Litre - Image 1](https://m.media-amazon.com/images/I/718SPJI5sYL.jpg) ## Frequently Bought Together - Mayhems - PC Coolant - Ultra Pure H2O - High Purity, Low Electrical Conductivity, 1 Litre - Kingston Fury Beast RGB 64GB (2x32GB) 6400MT/s DDR5 CL32 Desktop Memory | AMD Expo | Plug N Play | Kit of 2 | KF564C32BBEAK2-64 - AsiaHorse 16AWG Pro Power Supply Sleeved Cable for Power Supply Extension Cable Wire Kit 1x24-PIN/ 2x8-PORT (4+4) M/B,3x8-PORT (6+2) PCI-E 30cm Length with Combs(Dual EPS Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/595584630-mayhems-ultra-pure-h2o-pc-coolant-computer-water-cooling-fluid](https://www.desertcart.fr/products/595584630-mayhems-ultra-pure-h2o-pc-coolant-computer-water-cooling-fluid) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-08-14*