【RSC51】Water Purifying Shower Filter, Compatible with Toray Trevino RS51 RS52 RS53 RS54-AZ, High-Performance Replacement Filter Chlorine Removal Heavy Metal Removal Type, Tore Shower (Compatible Product, Pack of 4) 【Wide Compatibility】: Water purifying shower filter, compatible with Toray Trevino RS51 RS52 RS53 RS54-AZ. Before purchasing, please be sure to check the size shown in the image and confirm the model number of your shower head. 【Excellent Finish】: ABS resin, fibrous activated carbon. The fibrous activated carbon filter effectively removes residual chlorine, which causes dandruff, itching, skin irritation, and dry skin. It softens the water, filters out impurities, and protects the health of your family. 【Importance of Replacement】: If the water flow is noticeably reduced, the filter cartridge is clogged with impurities. Feeling weak water pressure: Even if not completely clogged, the water flow will be noticeably weaker than before. Poor skin and hair condition: If your skin feels dry and itchy after bathing, or your hair is dry and difficult to manage, the filtration function may be reduced and impurities may not be removed. Not feeling the effect: If you used to feel smooth skin, but that sensation is gone. Based on your living environment and experience, replace the filter cartridge in a timely manner! 【Notes】: This product is compatible with Toray shower heads, it is not an official product, but can be used in the same way, please understand. The recommended replacement cycle is 3-6 months. The replacement cycle is determined by the amount of water used, water quality, and water pressure conditions.