This Pleated Cellulose Polyester Replacement Pentek Cartridge reduces sand, dirt, silt, rust, and scale particles in residential and commercial water. It has a nominal filtration rating of 20 microns at an efficiency of 85%. The filter is made of resin-impregnated cellulose and polyester media pleated around a polypropylene core for strength. 

Feature:

KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates

LONGER LIFE with 33% more dirt holding media than many competitors

STRONGER than standard cellulose cartridges with a unique blend of resin-impregnated cellulose and polyester

REPLACE EVERY 3-6 MONTHS or when you notice a drop in water pressure or quality.