1.36 LEVEL SHOWER FILTER This shower water filter uses a 36 stage filtration system with various filter materials to efficiently remove chlorine, rust, heavy metals, odors and other contaminants and ensure water purification 2. Speed Rotation Impeller Our shower head filter has a turbocharged design, which can effectively improve water pressure. Shower filter features a fast rotating impeller that distributes the water in the filter cartridge, ensuring that every drop of water is effectively filtered 3.HAIR SKIN CARE The shower filter provides soft and healthy water. Say goodbye to dry, itchy skin, reduce hair loss and improve skin immunity. Vitamin C beads in the filter improve skin and rejuvenate damaged hair 4.2 pieces shower filter cartridges in total: contains a total of 2 shower filter cartridges (one is already in the filter housing and another 1 is for replacing). Each cartridge lasts approx. 6 months or 12,000 gallons of water consumption (depends on your local water quality and frequency of use), depending on water quality and frequency of use