Two Replaceable Cartridges - Comes with two replaceable cartridges, one included in the package and the other inside the filter. Each can last up to 6 months. 20-Stage Shower Filter -Our 20-Stage Shower Filter uses advanced filtration technology to remove harmful substances such as chlorine, fluoride, heavy metals, rust, sand, and other sediments from your water, leaving it clean, and safe for your skin and hair. Stable Water Pressure and Body Care -High-performance shower filter maintains existing water pressure while activating your cells, removing unpleasant odors and impurities, quickly relieving fatigue, slowing aging, and smoothing skin. Universal Compatibility - The shower filter features a standard 1/2inch thread type that can fit over overhead, handheld, rain shower, and combination shower heads. Easy Installation - The showerhead filter is easy to install without any tools. Just remove the old shower head, wrap the new tape, lay the rubber gasket flat, screw on the shower filter and head, remove any carbon deposits, and let the water pass through the filter for a few minutes before use. Material: ABS colour: As shown Package Contents: 1 x shower head filter 2 x cartridges (one of the cartridges is inside the filter) 2 x gaskets 1 x raw material belt 1 x English instruction Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.