The PENTAIR RESIDENTIAL FILTRATION ECP1-20 is a pleated cellulose-polyester filter designed for enhanced filtration efficiency. This filter captures a wide range of contaminants, ensuring clean and safe drinking water. Its pleated design increases surface area, allowing for longer service life and reduced clogging. Compatible with various filtration systems, the ECP1-20 meets industry standards for water quality, making it an excellent choice for residential applications. Enjoy the benefits of improved water clarity and taste with this reliable filtration solution.