Be careful with Berkey. It's a pretty scammy brand, but this is not well known. Essentially, Berkey was created to resell British Berkenfeld / Doulton filters

Be careful with Berkey. It's a pretty scammy brand, but this is not well known. Essentially, Berkey was created to resell British Berkenfeld / Doulton filters in the US. They simply tweaked the brand name Berkenfeld into Berkey and began US distribution. Doulton has a rich history, and is a very legitimate brand. They invented ceramic filters in Victorian times. Berkenfeld was a German competitor that was transferred to British hands after WWI. Once Berkey started selling well, they began sourcing some filter candles in China. These are no longer Berkenfeld / Doulton. They don't look similar.