Farewell pesky metallic taste - enjoy cleaner, better tasting water throughout your home with iron reduction. Effectively lessens the orange and brown staining often found in plumbing fixtures such as sinks and toilets. Also reduces the possibility of pipe and water-using appliances damage. Chemical-free alternative to traditional chlorination systems for treating iron, creating less hassle for residential applications. To maintain optimal filter performance, it is recommended to use this filter in combination with a pre-sediment and post-carbon filter. Designed for 20" Big Blue filter housings (also compatible with other 20" heavy duty filter housings) and can replace any 20" x 4.5" iron reducing filter. Ideal for residential applications, especially households with rural (well) water supplies.