- Premium water filter element designed for seamless compatibility with all Berkey water purification systems. - Constructed with high-quality natural coconut activated carbon, this filter effectively removes chemicals, heavy metals, and other contaminants from freshwater sources, ensuring safe and clean drinking water. - A set of two black elements can purify up to 6,000 gallons of water, making it an efficient and cost-effective solution for large households or extended use. - Please note: this product is not suitable for saltwater sources or softened water. - Dimensions: 9.5 inches x 2.5 inches. Each set includes 4 filter elements, providing comprehensive filtration. Use scenarios: 1. Ideal for family camping trips, ensuring you have access to clean water from lakes or rivers. 2. Perfect for home use, fitting into your Berkey system to keep your drinking water free of harmful substances. 3. Suitable for emergency preparedness kits, offering a reliable source of filtered water during outages. Choose this premium filter element to enhance your Berkey water purification experience and enjoy peace of mind with every sip.