10-stage filtration system for captain-eco and similar shower filters the filter cartridge includes a combination of kdf-55, active carbon and calcium sulfite, polypropylene cotton & ceramic balls to filter showering water. These materials will purify the water by removing any impurities & harmful heavy metals & chlorine during the cartridge very effectively. Better skin & hair care we assure a better water quality output to shower with. With our 10-stage filtration you will experience a much healthier shower that helps to remove dry skin & itchy skin for both men & women. You will also benefits from an odor-free water that you can safely use for your kids or your pets highly removes chlorine & many other impurities 5-stages of filtration leave nothing but pure water at the output for you to use. The filter not only removes chlorine to a great degree but also many sediments, heavy metals & other small particles & impurities in the shower water.