The F10 Sediment PP 5 micron is designed to reduce sediments like dust, sand and rust. Features: This filter has a multilayered microscopic PP fiber that uses melt-blown technology. This filter can hold a high capacity of dirt that allows the entire depth of the filter, because of the graded pore structure. Benefits: It has a 100% polypropylene microfiber layer graded material, that ensures a high chemical-resistance. Replace the filter every few months, or when the water quality and purified water volume has decreased.