Hard water is sometimes accompanied by elevated levels of ferrous iron. Typically for such water quality two separate filter units are required – an iron filter and water softener. TFM Series units are water softeners with high iron removal capabilities. These combination units are designed to soften the water and remove ferrous iron (clear water iron) at the same time. These dual purpose combo units are economical & work with regular softener salt. Rainfresh TFM softeners with iron removal are specifically formulated with fine mesh resin beads that shallow shell that prevents the resin from getting fouled with iron. It also features a resin cleaner that strips off the iron from the resin beads. This makes TFM softeners perfectly suited to soften and remove iron. By installing a Rainfresh TFM water softener with iron removal, your laundry will come out cleaner and softer, you'll get spotless glasses and dishes from your dishwasher, enjoy softer bouncier hair and smoother skin after showers and prevent scale and iron build up in your bathroom and water heater.