Micron Catridge filters restricts, as per its rating, up to 0.2 microns of particulate matter in water. Catridges could be of inert polymer material or of steel. Catridge filters are of two types, absolute filters and nominal filters. Absolute rating filters 99.9% are of particulate matter above the rated microns. Nominal Filter between 80 - 90 % of particulate matter above the rated micron. The major use of Micron Catradige filters is that of pre / guard filter of ultra filteration and Reverse Osmosis. For removal of bacteria and pyrogens for high purity water utilised for pharmaceutical industry.