1.EFFICIENT FILTRATION TECHNOLOGY: Advanced 40 m filtration system removes rust, insect eggs, sediments, and suspended particles from your shower water, providing cleaner, healthier water for your daily showers. Experience the difference as impurities are captured before reaching your skin and hair. 2.TRANSPARENT MONITORING WINDOW: Innovative seethrough design allows quick visual inspection of the filter element's condition, so you always know when maintenance is needed. No more guessing about replacement timing just glance at the window for realtime pollution status. 3.PRESSURE SEALING SYSTEM: Equipped with a specially designed sealing ring that maintains integrity even under substantial water pressure. This thoughtful feature helps avoid leaks and drips, offering reliable performance throughout the filter's service life. 4.WIDE COMPATIBILITY DESIGN: Features a standard 12inch thread interface crafted from pure copper, making this limescale filter suitable for most shower heads, taps, washing machine inlets, and water heater outlets versatility that fits your existing plumbing.