MECO ES (formerly MASTERpak™ MICRO) is a fully integrated ultrapure water system engineered to produce ASTM Type 1 water for critical laboratory, medical, pharmaceutical, and industrial applications. Combining MECO’s nearly 100 years of water purification expertise with Water Works’ high-purity water treatment heritage, MECO ES delivers consistent water quality, reliable operation, and scalable system design.
MECO ES systems are designed to achieve ASTM Type 1 water quality and can be configured to support additional industry standards, including CLSI, CAP, AAMI ST108, HPLC-grade water requirements, and other laboratory and medical water specifications. The platform can also be engineered to support proton exchange membrane (PEM) and alkaline water electrolysis (AWE) applications requiring high-purity feedwater for green hydrogen production.
From pretreatment through final polishing, MECO ES provides a complete engineered solution for facilities where water quality directly impacts research, manufacturing, testing, and product performance.
MECO ES systems provide ASTM Type 1 ultrapure water for applications where even trace levels of contaminants can impact results, product quality, equipment performance, or regulatory compliance.
Ultrapure water is essential for cell culture growth, molecular biology, DNA and RNA sequencing, chromatography, and other analytical laboratory processes where precision and reproducibility are critical.
MECO ES systems support laboratory operations, analytical testing, quality control procedures, and research applications requiring ASTM Type 1 ultrapure water. Systems can also be integrated into broader facility water infrastructures supporting regulated manufacturing environments.
High-purity water is commonly used in product development, testing, cleaning processes, and quality assurance programs where water quality directly impacts product performance and compliance requirements.
Hospitals, healthcare systems, and clinical laboratories rely on ultrapure water for diagnostic testing, instrument feedwater, laboratory operations, and applications requiring compliance with AAMI ST108 and other industry standards.
MECO ES provides complete ultrapure water treatment solutions for PEM and AWE electrolyzer applications. Systems can be configured with pretreatment, reverse osmosis, electrodeionization (EDI), and polishing technologies to protect electrolyzer performance, improve efficiency, and support long-term operational reliability.
Every MECO ES system is designed around the specific water quality, flow, distribution, and operational requirements of the facility. Our engineering teams collaborate with end users, consultants, and EPC firms to develop systems that deliver long-term reliability while supporting validation, compliance, and operational efficiency goals.
Key design features include:
MECO ES systems are designed and manufactured at MECO’s San Diego, California facility, where our team specializes in high-purity water treatment systems for laboratory, healthcare, life science, medical device, and advanced technology applications.
Serving as a center of excellence for ultrapure water treatment, the San Diego facility utilizes advanced manufacturing techniques, including computer-controlled infrared (IR) fusion technology, to produce high-purity piping systems and engineered water solutions that support long-term performance and reliability.
By manufacturing MECO ES systems in San Diego, MECO maintains direct oversight of engineering, fabrication, testing, and quality assurance, ensuring every system is built to meet the specific requirements of its application before shipment.
Every system undergoes rigorous testing and quality verification before delivery, helping customers achieve reliable performance, consistent water quality, and long-term operational confidence.
MECO supports every MECO ES system through a comprehensive lifecycle services program designed to maintain water quality, maximize uptime, and support regulatory compliance throughout the life of the system.
Our service capabilities include:
For nearly 100 years, MECO has helped organizations solve complex water purification challenges across pharmaceutical, biotechnology, healthcare, industrial, and research applications. Our engineering expertise, application knowledge, and commitment to quality have made MECO a trusted partner for critical water systems around the world.
Backed by Grundfos and supported by a global network of water treatment experts, MECO delivers engineered ultrapure water systems trusted by pharmaceutical manufacturers, medical device companies, research institutions, healthcare facilities, and advanced technology organizations worldwide.
From initial design through validation and long-term service support, MECO ES provides a complete solution for ASTM Type 1 ultrapure water
