MakeFit Shower Head Filter Replacement Cartridge features a revolutionary filter system containing the patented KDF-55, advanced Calcium Sulfite, and a proprietary blend of Vitamin C, Redox Media, Ceramic Balls, and Zeolite Balls. This shower head filter helps to remove chlorine, fluoride, heavy metals, and other contaminants from your shower water, elevating your shower experience This high-quality replacement cartridge is designed to fit perfectly with your existing MakeFit Filtered Shower Head, ensuring a seamless and hassle-free installation process. It is easy to install and maintain, thanks to a simple twist-and-lock mechanism that ensures a secure fit