... accurate micron rate to remove small particles.SPECIFICATION:MATERIAL: Polyproplene (PP)OD(Outer Dia.): 30-114mmID(Inner Dia.): 26,28,30mmL ... (Length): depends on customers requiresMicron rate: 0.5,1,5,10,25,50,75,100,150umPlease feel free to contact us ... , we hope that receive your correspondence in the near future. PP SEDIMENT WATER FILTER CARTRIDGE 10" GROOVE