You can also get details of our varieties products by mailto:sigma.sh gmail.com
Shanghai Sigma Purified Water Co.,Ltd is a manufactory specialized in Reverse Osmosis Systems.
Our products are custom manufactured to Sigam's strict speciation, incorporating the same high quality standards that are in place at all of our facilities.

Shanghai Sigma has agencies throughout China. Jin Mao Tower, the tallest building in Asia has installed our commercial RO systems every floor.
Our dedication to quality is what has made us speaked highly of in Shanghai and in China.

In addition to the RO system, Sigma manufactures many other high quality water treatment components.
Our diverse product line includes stainless steel pressure tanks, stainless steel membrane vessels, pressure gauges and flow meters.

We manufacture a variety of components for residential and commercial Reverse Osmosis systems and also design systems for special applications.
Sigma manufactures and designs systems for Pure and Ultra-pure water systems used in the pharmaceutical, chemical, electronic and semiconductor industries.

Our business motto is to build working partnerships with our customers and our goal is to help our customers become more successful.
Sigma will keep striving to provide you the highest quality components combined with the quality customer service that you deserve.