A US-based company specialising in products for pure and ultrapure water. It originally produced electrodeionisation membranes and has now extended its portfolio to include membranes for RO, NF, UF and electrodialysis. An additional offering is SnowPure's ultraviolet (UV) water treatment products, especially used for TOC reduction. With offices in Hong Kong, mainland China and the Middle East as well as distributors in Europe, it has a worldwide presence.