The Brita Maxtra Pro Hard Water Expert Filter 3+1 pack (1051773) is designed to provide optimal filtration for households with hard water. Each filter cartridge uses advanced microflow technology, effectively reducing limescale, chlorine, heavy metals such as lead and copper, and other taste-impairing substances from tap water. The set includes four cartridges?three plus one free?each offering up to four weeks or 150 liters of filtered water per use. This ensures a continuous supply of fresh-tasting water ideal for drinking, cooking, and protecting household appliances like kettles and coffee machines from limescale build-up. Brita is renowned worldwide for its innovative filtration solutions that combine German engineering with sustainability initiatives: the company offers recycling programs for used cartridges and strives to reduce plastic waste by encouraging reusable products over single-use bottles. By choosing this product, customers actively contribute to environmental protection while enjoying better-tasting water at home.