Link to fact sheet here.
DOULTON ULTRA STERASYL (does not remove fluoride)
The 9 month or 2000 litre super sterasyl filter manufactured by Fairey Industries in the UK (Doulton) is far and the way the best gravity filter manufactured anywhere. With its Absolute filtration rating (defined as >99.99%) of 0.9 microns, this filter is highly effective against particulate contamination, pathogenic bacteria, cysts, giardia, cryptosporidium as well as chlorine and organic removal capabilities. This filter has been tested and certified to The World Health Organization and the national laboratory standards of over 50 countries.
British Berkefeld Ultra Sterasyl® (previously ATC Super Sterasyl®) is Doulton’s best selling ceramic water filter candle for gravity water filter systems. The combination of a microfilter ceramic outer, granular activated carbon and heavy metal removal media effectively reduces a range of different contaminants including sediments, microplastics, e-coli bacteria, trace organics, enhanced organics, pharmaceuticals, pesticides, pfas, herbicides, free chlorine, monochloramine and heavy metals such as lead.