Built-in Filter: This shower head with water filter includes a 7-layer filtration system. The hard water shower filter head uses a unique and effective KDF filter design for maximum benefit Easy Filter Changes: The filtered rain shower head for softening and purifying uses a ribbed design to make any changes as easy as possible to maintain the chemical removal process Screw-On Attachment: The shower head with filters uses a universal fitting. The rainfall shower head with filter is easy to install and remove, making it perfect for renters too Multiple Settings: The high pressure filtered shower head includes multiple modes, so all showers feel like a massage. This shower water purifier feels like a luxury hotel spa bathroom showerheads