JS-4040 hollow nf membrane direct drinking water purifier No Filter Core Replacement/No Electricity Required/No Waste Water Features 1, Filtration accuracy 1-10nm 2, Permeate selectively 3, Pure physical filtration by feed water pressure 4, Crossflow filtration, automatic washing and minimal fouling. The service life of NF filter is 5 years. 5, Space-saving installation, easy to use and no power required JS-4040 Direct Drinking Water features 1, Purer water contains desired mineral solutes Ca, Mg, Fe, Zn, Sr, etc. 2, Remove viruses, bacteria, heavy metal ions,chemical residues, etc. 3, Water quality is weakly alkaline(PH value in human blood is 7.35-7.45), small molecular clusters (The half-width of NMR is less than 100Hz,hollow NF is about 88). Product Information Model:JS-4040 Membrane material: Medical grade PES-A material imported from Germany Product size: 90*1200mm Filter core: Hollow fiber NF membrane Net weight: 7.5KGS NF Membrane ID &OD: 0.8-1.2mm Place of use: Terminal water purification Filtration accuracy: 1-10nm Lowest Water pressure: 1bar Sealing material: Medical grade silicone Filter life: 5 years warranty Shell material: Food grade stainless steel