【20-LAYER FILTRATION】KDF 55, alkaline ceramic balls, activated carbon, calcium sulfite, and other filter materials ensure high efficiency in improving water quality. The 20-layer filtration system helps reduce chlorine, heavy metals, rust, sand, and other sediments. 【IMPROVE SKIN, HAIR, AND NAILS】This filter helps soften and moisturize skin, balance pH levels, and infuse beneficial minerals into skin, hair, and nails. Suitable for family use, including the elderly, pregnant women, and children. 【HIGH PERFORMANCE】Compatible with both cold and hot water showers. High temperatures do not affect filter performance. Maintains existing water pressure while delivering softened, cleaner water. Helps soap and shampoo lather more effectively and improves hydration for skin and hair. 【HARD AND SOFT WATER FILTER】Includes 2 filter cartridges. Each cartridge has a capacity of 12,000 gallons, providing clean, odor-free water suitable for a family of four for 6 to 8 months. 【UNIVERSAL COMPATIBILITY】No tools required. Standard cartridge size: 6.9 x 6.1 cm. Features a standard 1/2-inch thread, compatible with wall-mounted, handheld, rain, and combination shower heads. Package includes: 1 shower filter, 2 replacement filters, 1 Teflon tape, and 2 silicone seals.