A company in Scandinavia is using Electrochemical Machining (ECM) as high tech metal machining technology for their products. The metal components produced with ECM technology are rinsed with fresh water. This rinse water is recycled in a reverse osmosis (RO) installation and reused. For protection of the expensive and delicate RO membranes CleanFlow supplied the pre-filters. A dual system is supplied with filter housings and high performance pleated bag filters. Providing exceptional long service life and easy change out.