Description: 100% Brand New and Hight Quality. Material: Bamboo charcoal,PVC rubber,carbon. Size: 6cm *4cm *3cm Suitable for 16-23mm diameter faucet Pack: 6pcs Package Included: 6 x Tap water filter Water Filters composition and function: Zeolite: go out and chlorine, chlorine and some other heavy metal impurities and make the water smell and health sweet. Calcium nitrite: not only adsorbed organic compounds, toxic metal ions and harmful bacteria and viruses in the water has a very strong adsorption, especially for dechlorination effect is more pronounced Activated carbon: out chlorine, odor, and a variety of toxic and hazardous substances in water, has a bactericidal antibacterial function, can reduce water alkaline substance weakly alkaline water PVC non-woven filter layer: filtered water in the iron slag, sediment, suspended solids and visible impurities Note: 1. Blackwater have started flowing out, this is normal, you can turn on the water for about 5-10 seconds, please read the instructions carefully and use the back of the baby 2.Avoid prolonged use in hot water, it is preferable to use at 40 degrees Celsius 3. If the product cannot be installed, please soften it with hot water