Compatibility: This AWP175 filter element should be compatible with Philips AWP1775WH and AWP1775CH installation boxes. Suitable for hand showers, rain showers, and combination showers, shower hoses, and faucets. Please check for a box for the filter element before purchasing. Premium Filter Material: The premium KDF material in the shower filter can help absorb impurities such as chlorine, fluoride, heavy metals, rust, sand, fine particles, and other sediments in the water, making the water clean and allowing you to enjoy a pure bath. Stable Water Pressure and Body Care: The high-performance shower filter maintains existing water pressure, withstands high temperatures, and maintains the ideal temperature, helping to absorb bad odors and impurities, quickly relieving fatigue, smoothing the skin, keeping hair clean and shiny. Softened Water: A shower filter can significantly soften shower water; hard water can dry out skin and scalp and make skin dull. It helps you solve bathing problems for infants and young children and enjoy healthy water. Economical Combination: You get a total of two filter cartridges, each with a capacity of 50,000 liters. It is recommended to replace it every 4 to 6 months (depending on the frequency and amount of water used).