Dual chamber pump for the Cooler Master MASTERLIQUID ML240L ARGB V2 CPU liquid cooler PPS-Housing Pump for Fiberglass Three-Phase Motor with Quiet Controller Triple-grade EPDM rubber for industry use increased performance and quality, Upgrade your build with the recently developed pump, which is constructed with glass fiber and PPS (polyphenylene sulfide) for enhanced resistance to a variety of chemicals, moisture, and water. Industrial Grade EPDM that has been specially formulated is used for reinforced sealing to stop leaks. NEW DUAL CHAMBER 3RD GEN PUMP, Enjoy a more silent cooling experience thanks to an improved internal impeller and housing design that reduces noise and improves cooling efficiency. MORE DISSIPATION, MORE AREA Better heat dissipation results from larger surface areas; a surface area increase of more than 25%