The Systems FI-ES-SED10 Stage 1 10" 5 Micron Sediment Replacement Filter is a high-quality water filter designed for under sink filtration systems. With a size of 10 inches and made of durable polypropylene material, this filter effectively traps sediment particles as small as 5 microns. The pack includes one filter, making it easy to install and ensuring clean and healthy water for your household. Perfect for maintaining the purity of your tap water, this filter is a reliable choice for keeping your water safe and refreshing.