Maintain peak performance of your MDhair Filtered Showerhead with the MDhair Replacement Filter. Featuring the same dermatologist-recommended 20-stage filtration system, it effectively removes chlorine, heavy metals, fluoride, and other impurities that can irritate the scalp and dry out skin and hair. This high-performance filter enhances hydration, promotes stronger hair, and supports scalp health. Designed for easy, tool-free installation, it fits perfectly into your existing MDhair showerhead. Replace every 3 months to ensure optimal water quality and continued hair and skin benefits. As we customized the filter, it includes 2X of the most important and expensive filtering ingredients compared to other 20-stage filters. The MDhair shower head filter allocates much more of its total media to the two most effective premium ingredients (KDF-55 and calcium Sulfite) compared to generic filters. This choice likely results in better chlorine, heavy metal removal, and performance in hot water, while generic filters often dilute these with cheaper activated carbon or filler materials.