1. Use organic diatomaceous earth as the main filter material.2. Generally speaking, the filter elements can be suitable for faucet installation filter.3. Better filtration efficiency. The filtration system has 7 types of filter materials, including deep-sea diatomaceous ceramics, calcium sulfite, activated carbon, mineralized beads, tourmaline, PP cotton and filter meshes. Therefore, it can remove many harmful pollutants such as chlorine, bacteria, viruses, heavy metals, rust, etc.4. Clean filter elements is more economical and can extend the life of the filter. Color: white Material: diatom mud Size: 43 x 43 x 85 mm Package content: 4 x water purification filter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item the photo will be slightly different than the real one. The measurement error is +/- 1-3cm. Shipping Time: We can ship all products within 5~8 business days