The Sealed WaterPur CCI-10-Ca Extruded Carbon Filter Cartridge Block is a high-quality water filter designed for the CCI-10-Ca model. It utilizes carbon block filtration method to effectively remove impurities and contaminants from your water, ensuring clean and safe drinking water for you and your family. This cartridge has a 12 months new replacement guarantee, making it a reliable and efficient solution for your water purification needs in your kitchen.