From MAYER
• Innovative 5 Step Filtration Technology: Coarse Filter, Nylon Filter, Activated Carbon, Ion-Exchange Resin, Ultrafiltration Filter • Reduces chlorine and other organic substances • Reduces limescale formation in kettles and appliances by reducing carbonate hardness • Reduces metal contamination such as copper, lead, zinc, cadmium, mercury etc • Reduces sediment, pesticide, and herbicide contamination • Retains certain beneficial minerals and trace elements • Enhances taste and clarity of water, resulting in better tasting hot drinks and beverage • Filter replacement for Mayer 3L Instant Heating Water Dispenser with Filter MMIWD30 / 4L Instant Heating Water Dispenser with Filter MMIWD4008 / Instant Hot Water Dispenser with Filter MMIHW25