The F Series Filter effectively reduce contamination in your air stream, protecting critical processes and valuable equipment, while maintaining a low pressure drop throughout the life of the filter element to ensure an efficient air preparation for point-of-use applications. The filters are offered in two sizes. The ½’’ model has a polycarbonate bowl while the 1’’ model has a metal bowl. This series offers three levels of filtration. The FS model is the first stage separation of liquids. This model comes with an internal float drain. The FC model is the second stage for oil carry-over filtration. Finally, theFD model has a filtration element with encapsulated activated alumina to remove moisture.