Ultra Sterasyl is our bestselling ceramic water filter 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 bacteria, trace organics, enhanced organics, pharmaceuticals and heavy metals such as lead. And as well as working with our gravity water filters, its also compatible with all other gravity fed water filter systems on the market.Change your ceramic water filter candle every six months for consistently clear, tasty and odourless water. If you live in a cloudy water area, you can also clean the Ultra Sterasyl filter to help restore its flow.Replacement ceramic water filter cartridge, complete with wing nuts & washersImproves taste and odourReduces bacteria, heavy metals, trace organics, enhanced organics, pharmaceuticals and PFAS.99.9% reduction of microplastics*Filters are suitable for use in Berkey, Phoenix, Purewell, Newton Gravity Water Filter SystemsThe Ultra Sterasyl ceramic filter replaces the ATC Super Sterasyl ceramic filterReplace every six months for best results(*As tested and Certified by NSF to NSF/ANSI Std 401)