Each water filter tap uses the unique BRITA water filter cartridge to improve the taste, smell and appearance of tap water. These water filter cartridges have a unique mix of ion exchange resin and activated carbon removes not only chlorine but also limescale, heavy metals such as lead and copper and organic impurities. These water filter cartridges employ BRITA’s four-stage filtration process to ensure all cartridge contents are used efficiently, providing consistent water quality throughout the lifetime of the cartridge.A BRITA water filter cartridge has a lifetime indicator at the base of each tap that uses a simple traffic light system to show when a cartridge needs changing. You can enjoy 500 litres of BRITA filtered water before you need to change your cartridge. What’s more, the space saving cartridge is designed for out of sight compact under-sink installation in a position to suit your cupboard layout, so you won’t even notice it’s there.