1. Material: The material is modified fiber ball, not ordinary fiber ball, if the price is very low, the product you buy may be recycled ordinary material. 2. Decontamination mechanism: direct interception, inertial interception and electrochemical adsorption. 3. Features: hydrophilic and oleophobic, it has the advantages of good effect, high precision, easy washing and long service life in oily sewage treatment. 4. Small diameter and large specific surface area: the specific surface area is as high as 2000/g, the porosity of the filter layer after stacking is more than 80%, the oil content of the water before filtration is 15mg/L, the suspended matter is 10mg/L; oil content of filtered water is 5mg/L, suspended matter 2mg/L. Interception of suspended solids is better than other filter media. 5. If you have a swimming pool, it is recommended to buy more, we have a promotion, please refer to the specific situation of the promotion. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.