Berkey - BB Purif. Elements
Product Description and Features:
Black Berkey®Elements are the leader in gravity-fed water purification, backed by independent testing.
The Black Berkey® Element formulation has been tested by State and EPA accredited laboratories to exceed NSF/ANSI Standard 53.
Includes: Two 9" Black Berkey® Elements with 2 washers, 2 wing nuts, and 1 priming button.
Installs in the upper chamber of any Berkey system. Elements can also be used to upgrade most other gravity-fed water filter systems.