Polypropylene filters are suitable for POU (Point of Use) and POE (Points of Entry) installations. Through its polypropylene filter media, they remove solids in suspension in a wide range of micron rating, protecting your water stream and enhancing a continuous supply of fresh and clean drinking water. Pre-filter 5 microns (5um) cartridges made of polypropylene. Removing solids in suspension in a wide range of micron rating. Protecting water stream and enhancing a continuous supply of fresh and clean drinking water.