Berkey is a brand known for its water filtration systems, designed to provide clean drinking water. Their filters use a combination of gravity and advanced filtration technology to remove contaminants, including bacteria, viruses, and heavy metals, making it suitable for both home use and outdoor activities. The Berkey systems come in various sizes, catering to different needs, from small family units to larger models for groups. They are popular among campers and those in areas with unreliable water sources, as they can filter water from lakes, rivers, and other natural sources, ensuring safe hydration.