HIM Series - Hardness, Iron and Manganese Rid your water of hardness minerals (calcium and magnesium) and 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.80153040 HT HIM Specialty System Spec Sheet.pdf54613 - 785 HIM Softener Hydrotech Manual REV0.pdf