The Pentek ECP5-20BB 5 Micron 20" x 4.5" Pleated Sediment Filter Cartridge is a high-quality water filtration solution that can last up to 6 months. Made of pleated cellulose material, this filter cartridge effectively removes sediment contaminants from your water supply. With a flow rate range of 20.0 - 50.0 and a micron rating of 5, this filter cartridge is designed to fit Pentek housing models that use 20 x 4 1/2 replacement cartridges. Ideal for home plumbing systems, this filter cartridge is a reliable choice for clean and fresh water.