10 inch 5-Micron Polypropelene Sediment Filter Cartridge General-purpose spun polypropylene sediment filter cartridge. Fits in most standard 10 inch drop-in filter housing systems. Used in residential, commercial, and food-service applications as a sediment filter or pre-filter. FEATURES: Made from polypropylene fibers Filters out larger dirt and rust particles High dirt-holding capacity and superior sediment filtration Excellent bacteria and chemical resistance. Extends the life of primary filter cartridges.