Berkey Systems Side-By-Side Comparison Chart Jose August 01, 2018 22:42 Updated Follow Related articles The Berkey Water Purification Process What is the Water View Spigot made of? Correcting a Slow Filtration Rate Are Berkey® Systems Available in Iowa? Do the Black Berkey Filters remove Glyphosate a.k.a. Round-up? Comments 0 comments Please sign in to leave a comment.