The Santevia Shower Filter Refill Media helps maintain optimal filtration performance by reducing up to 99% of chlorine while infusing magnesium for a more refreshing shower. It supports softer skin and smoother hair by helping reduce dryness and irritation caused by chlorine exposure. Designed for convenience and sustainability, this refill includes filtration media and a microfilter. Simply replace every 2 months to keep your shower filter working effectively without replacing the entire unit.