The Kenmore 46-9915 Replacement Water Filter Cartridge is a pack of two cartridges made of plastic. These cartridges are compatible with Aqua Optima and suitable for refrigerators. They have a cartridge life of 6 months and can remove chlorine taste and odor. The model number is WF300 and it is compatible with Kenmore. The product is made in the United States and comes in white color.