1. Use organic diatomaceous earth as the material. 2. Generally, the clear out points would be suitable for tap set up filter. 3. Better filtration performance. The filtration ingredients has 7 kinds of filtration materials adding deep-sea diatom , calcium sulfite, activated carbon, mineralized balls, tourmaline, PP cotton and clear out nets. Therefore, it is going to get rid of many harmful pollutants, corresponding to chlorine, , viruses, heavy metals, rust, etc. 4. The washable clear out features is extra cost fine and might increase the provider lifetime of the filter element. Colour: white Material: Diatom dust Size: 43 x 43 x 85mm Package Contents: four x Water air purifier filter out Only the above equipment content, different merchandise will not be included. Note: Light and sundry reveals could cause the color of the thing within the photo somewhat different from the genuine thing. The size allowed error is +/- 1-3cm.