The new Maxtra+ universal filter cartridge ushers in a new era of water filtration. It is even more powerful than the previous generation and each Maxtra+ Universal filter cartridge still has all the features that made the original Maxtra such a success. Special features 25% improved taste Even more power for even better taste Fits all Brita systems (except Classic systems) Reliably reduces the limescale content of the water as well as odour and taste-disturbing substances such as chlorine Metals found in domestic installations such as lead and copper For 100 litres of filtered water, change cartridge every 4 weeks.