The CUNO 5231JA2002A REPLACEMENT CARTRIDGE is a new sealed water filter designed for various refrigerator models including Samsung, Aqua Optima, Frigidaire, and Brita. Made of white plastic, this 2-stage filter uses carbon block filtration to remove chlorine taste and odor, making it suitable for both commercial and household use. With a capacity of 500 liters, this LG brand water filter is lightweight at 0.5 lb and easy to install, providing clean and fresh water for your kitchen needs.