The Brita Maxtra Pro Limescale Expert filter cartridges come in a convenient pack of 6 pcs, providing a total filtration capacity of 900 liters to keep your drinking water clean and your appliances protected. Each individual cartridge handles up to 150 liters using a four-stage process that begins with a super-fine mesh for coarse particles and continues through natural microcarbon pearls derived from coconut shells to remove chlorine, odors, and unpleasant tastes. To specifically combat hard water, these filters utilize ion-exchange pearls that reduce limescale buildup and filter out metals like lead and copper, finishing with a high-performance filter mesh. The cartridges are crafted from ISCC PLUS certified bio-based plastic, making them a more sustainable choice for your home. Since they are compatible with all existing Brita filter jugs and the Flow dispenser, you can easily integrate this 6 pcs set into your current setup to extend the life of your coffee machine or kettle by preventing mineral deposits.