The DéLonghi coffee machine water filter reduces lime scale, improves coffee quality, machine performance and extends the working life of your coffee machine. Ensure the best coffee every time with the DeLonghi EcoDecalk Coffee Machine Descaler. The Descaler is 100% eco friendly and three times more effective and efficient at dissolving limescale deposits than traditional descalers. Eco Friendly Made from only natural and high quality raw materials, the DeLonghi Descaler is biodegradable and non-polluting. Plus, the bottle is made out of 50% recycled plastic, making the packaging as well as the descaler as environmentally friendly as possible.