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Quick Install | Zero-Maintenance | PWM Controlled™
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Next Generation Maximum Performance Liquid CPU Cooling System

The Antec KÜHLER H2O 1250 provides maximum-performance liquid cooling for your CPU and delivers best-in-class performance in a quick, easy-to-install package. Unlike traditional liquid cooling systems, this self-contained unit comes prefilled and requires no maintenance. Two 120 mm voltage-controlled (PWM) fans and dual extra large pumps ensure quiet, efficient cooling, while the 240 mm radiator maximizes cooling surface area to dissipate heat from the highest performance CPUs on the market. Lastly, the included Antec Grid™ software helps you monitor and control the Antec KÜHLER H2O 1250’s performance and allows you to customize its stylish RGB LED. Designed to unlock the maximum potential of your CPU, the Antec KÜHLER H2O 1250 delivers exceptional cooling when you need it the most.

Hotfix download for Windows 8/8.1 MS .NET Framework 2.0

Must uninstall the old version before install Antec GRID V2.1

if the Antec Grid V2.1 does not work, please contact

  • Copper cold plate is optimized for thermal conduction
  • Extra large pump and integrated fan were engineered to cool the radiator efficiently
  • Two Integrated PWM fans automatically adjust fan speed based on temperature. Built-in directional blades focus airflow through the radiator
  • RGB LED illuminates your case and changes color to indicate CPU temperature
  • Included software provides essential tools to control and monitor the KÜHLER H2O 950
  • Dual pump operation for maximum performance
  • Intel Compatibility LGA 775/1150/1155/1156/1366/2011
  • AMD Compatibility AM2/AM2+/AM3/AM3+/FM1/FM2
  • Antec Advance
    Liquid CPU Coolers