Pentair Pentek P5-478 Sediment Water Filter, 5-Inch, Under Sink Spun-Bonded Polypropylene Replacement Cartridge, 5" x 2.5", 5 Micron, keeps your water clean and protects your appliances by removing dirt, sand, silt, scale, and rust particles in residential, commercial, and municipal drinking water. It fits all 5" standard housings and can replace any 5" x 2.5" sediment filter cartridge. It is manufactured from pure 100% polypropylene fibers spun together to form a true gradient density from outer to inner surfaces. It is designed for purity and chemical resistance so it will not impart taste, odor or color. It has nominal filtration rating of 5 Micron.