WF-PE1020, NSF certified 2.5-inch x 9-3/4-inch Pleated Sediment Water Filter Cartridge, fits in 10-inch standard size housings of undersink reverse osmosis (RO) or water filtration systems. Our filter cartridges remove dirt and other suspended particles up to 20 micron in municipal and portable water to increase quality. WFD filter cartridges provides “depth” filtration for greater sediment removal, and operates at higher flow rate and lower pressure drop. Made with approved materials for drinking water, beverages and liquid food applications as well as commercial and industrial applications. Media: Polyester (washable and reusable). Material Center Tube: Polypropylene. Material End Cap: PVC Recommended replacement time is approximately 4-6 months depends on the quality of the original water source and application type. Micron Rating: 20 Micron. Operating Temprature: 40-140 F-degree (4.4-60 C-degree). Available in different packing quantities.