The 3M Aqua-Pure CYST-FF Full Flow Drinking Water Filter System Kit is a white water filter designed for household use. Made of plastic and manufactured in the United States, this filter system is specifically compatible with the Full Flow System model. It effectively removes cyst contaminants to provide clean and safe drinking water for your household. The 3M brand ensures quality and reliability in water purification, making this filter system a practical choice for improving the taste and safety of your tap water. Open box. Owner manual not included