ASN 4800 Series - Hardness, Iron and Manganese removal. Rid your water of hardness minerals (Calcium and Magnesium) as well as Iron and Manganese. Enjoy soft skin, silky hair, spot free dishes and brighter laundry protecting your plumbing and water using appliances from scale build-up. Removing Iron and Manganese will keep fixtures from getting stained as well as removing the taste and smell.