The large Berkey’s manufacturer, New Millennium Principles, claims the filter can take out greater than a hundred contaminants,one far more than other gravity-fed filters we’ve investigated. We analyzed these statements over a restricted scale, and our final results were not always according to lab benefits that New Millennium commissioned. If http://stephenufmsu.blogsmine.com/8254133/the-ultimate-guide-to-ron-aqua-amazon