Profile® II RFN Series filters* are composed of an all nylon filter medium with glass filled polypropylene cores as standard. They are also available with glass filled nylon cores. The elements have an absolute rated downstream section, and a continuously profiled pore size upstream section, which increases service life many-fold.

The fibers in Profile II RFN filters are for practical purposes continuous. No binder resin is used —the fibers are “bonded” by intertwining during the manufacturing process. As a result , Profile II RFN filters show no media migration.