Hard water can leave your clothes feeling harsh after a wash and also affects your machine, only to cost you more with each load of laundry. Calcium and magnesium, the two minerals found in hard water react with detergent to form an insoluble precipitate known as soap film. The soap film then latches on to your laundry resulting in a poor wash, leaving your clothes dull and rough. The IRIS WMF 617 washing machine filter is a multi-layer filter that comes with best in class anti-scalants and dual sediment filter layers. It ensures that impurities are filtered out and salts are conditioned before they reach your washing machine. The Iris Washing Machine Filter is universal and fits almost all automatic washing machines and is super easy to install.