Berkey water purification systems are the BEST water filters for survival. These water purifiers provide you fresh, clean water in seconds - a must-have when SHTF. Plus, Survival Frog has the best deals on Berkey portable water filters, including top-selling survival tools like Berkey water bottles, Berkey shower filters, and water filtration systems. Survival Frog even has the best deals on the Go Berkey Kit, which includes two life-saving Berkey water purification systems in one easy to carry bag! Add these Berkey filters to your bug out bag and camping gear when you're preparing for disaster. When SHTF, you'll be glad you have clean, pure water at your fingertips!