100% brand new and high quality Features and features: 1. It is made of high quality hollow fiber membrane material, which has high packing density and large flow rate; 2. good chemical stability, acid and alkali resistance, bacteria resistance. 3. high filtration precision, filter pore size of 0.01 microns, to ensure the safety of drinking water quality. 4. the product can achieve automatic sewage, to ensure the stability of the effluent water quality and water output. 5. The filter element does not need to be filled with protective liquid, which is convenient for transportation and storage. 6. the amount of interception is large, and the product life is longer. 7. drinking water taste good, no odor, odor. 8. Good pressure bearing, water hammer resistance, maximum pressure of 8 kg. 9. good hydrophilicity, strong anti-pollution ability, not easy to foul 10. Suitable for three-stage, five-stage filters and standard, hood filters The main technical parameters: 1. Microporous average pore diameter: 0.01 ~ 0.1m 2. Appearance dimensions of the film: outer diameter 450m, wall thickness 40-50m 3. Longitudinal tensile strength: >120Mpa 4. PH: 0~14 5. Bursting strength: >1.0 MPa 6. Operating temperature: 4 ~ 40oC 7. Recommended working pressure: 2.5 MPa Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 * Water filter