... :Nylon, pore size , 0.2um~5um,Length :5",10",20",30",40" End caps :DOE,CODE2,CODE7 ... 0.20um, 0.45um, 0.65um1.0um, 3.0um, 5.0um etc.LENGTH: 5inch, 10inch, 20inch, 30inch, 40inchEND ... Code 2 (226 Flat) 4. Code 7 (226 Fin)5. DOEO-RING:1. Silicone 2. Viton2. EPDM 3. ... and alkali-resistance4. Experiencing 100% integrity test before ex-factory5. Each Pharmaceutical Grade filter cartridge has been washed ...