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E-Rotek Water Systems Co., Ltd. is a trusted provider of water treatment solutions for residential, commercial, and industrial applications. Since its establishment in 2000, the company has gained a reputation for delivering high-quality, cost-effective solutions to customers in over 30 countries worldwide.

E-Rotek's engineering design focuses on long-term value and reliable service, and our team of experts has a wealth of knowledge and experience to support all your water treatment needs. With a dedication to excellence, E-Rotek has become a leading manufacturer and distributor in the industry.


A Single Source Supplier

Our broad range of water treatment systems enables you to access one or multiple technologies for integration into a total water treatment solution specific to your feedwater source and application.


Flexible OEM/ODM Service

We believe that standard products are not always able to meet our customer's demands. To best serve those needs, ROtek has an extensive OEM/ODM service where you can access our custom design service and see the project through to production with the help of our specialized team.



ROTEK uses only the best available components in all our systems to ensure long operating life and reliability.  Wherever possible we use globally supported components in industry standard formats to give maximum choice of using new developments in membrane and filtration technologies as they become available.  We have developed a specialized surface-modified reverse osmosis membrane for groundwater treatment as part of our ongoing R&D process and continue our research to improve all ROtek systems to give you the best possible solution.



ROTEK water treatment systems are designed with a minimal footprint to ease installation space.  Systems are fully engineered with corrosion-resistant stainless steel frames, high-pressure rigid pipework, stainless steel braided flexible hose, and high-pressure membrane pressure vessels. 



We also prioritize energy efficiency in our reverse osmosis systems, with options like variable speed controllers for high-pressure pumps to reduce power consumption.


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