Australia's family favourite for pure and fresh tasting water: the BRITA Marella jug. With 50% more effectiveness versus MAXTRA+ Pure Performance in reducing limescale build-up, the MAXTRA+ Limescale Filter is formulated to suit areas with moderate to hard water levels. Made of activated carbon from natural coconut shells, its activated carbon pearls act to absorb and lock away chlorine and other taste and odour impairing substances, resulting in fresher, cleaner water. Additionally, its ion exchange pearls help reduce metals like lead and copper and ensure reliable protection from limescale build-up. Australian household mains water is strictly controlled, however, limescale build-up is a prevalent issue for those living in moderate to hard water areas. Hard water refers to water that contains a high mineral count and occurs when water passes through soft rocks like chalk or limestone and picks up the minerals from them. Whilst this is not harmful to our health, hard water often results in an unpleasant smell, taste and mouthfeel when drinking. The in-built electronic indicator is designed to remind you when the filter should be replaced. Each MAXTRA+ filter provides 150 litres of pure and fresh-tasting filtered water and should be changed every 150 litres or each month (based on average household size drinking 8 glasses per day). *if found in tap water