The corona crisis has created unprecedented demand for Berkey systems and subsequently a shortage has arisen. The manufacturer is now working overtime to restore Berkey supply and we expect to have new Berkey stock within the forseeable future. Please check the site from time to time to see when the "out of stock" notices have been removed or send us an email specifying the Berkey model you want and we will notify you when it is back in stock. In the meantime the Black Berkey filters and PF-2 filters are available. Thank you for your understanding and we look forward to serving you in the near future.

Beta Radiological Removal Tests

The Berkey manufacturer, NMCL, has recently released the second round of independent lab testing for the removal of radioactive isotopes. This round for the testing of beta radiological contaminants was done for the following radioactive isotopes:

Actinium-227
Californium-251 and -252
Cesium-137
Cobalt-60
Iodine-129 and -131
Lead-210
Nickel-63
Promethium-145
Strontium-90
Technetium-99

The Black Berkey filters were found to remove the radioactive contaminants listed above to a level of 95.3%.
The complete radiological test results can be found here: Radiation Test results.