E-Rotek Water Systems Co., Ltd. is a complete water treatment solutions provider for residential, commercial, and industrial applications. Founded in the year of 2000, we have multiple well-established partners worldwide and clients in over 30 countries using our services to provide innovative and efficient pure water solutions. Our engineering design emphasizes low life cycle cost with high quality standards and responsive service support.


Our years of hands-on experience enable us to provide innovative and cost effective purified water solutions. We pride ourselves on providing clients with the lowest

life cycle costs, the highest quality and the most responsive service in the water treatment industry. We have products, technology, experience, and knowledge to support your needs. Our attention to detail has made ROTEK a leading manufacturer and distributor in this industry.


A Single Source Supplier

Our broad range of water and wastewater 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.


Global Sourcing

As a designer, manufacturer, and supplier of water and wastewater treatment systems and services worldwide, we have developed a global sourcing network that can deliver maximum value through the elimination of non-value-added expenses.


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. 



ROTEK reverse osmosis systems provide the highest efficiency possible for conversion rates and power consumption.  Larger systems may be fitted with variable speed controllers for the high-pressure pump to reduce energy consumption

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