Absolute rating 0.05, 0.1, 0.2, 0.45, 1 micron; Membrane . PTFE (Ploytetrafluoroethylene) membrane; Support: PP; End cap & Core . High strength PPO-ring material EPDM, Buna N, Silicone, Viton, Viton encapsulated PFA; Filtration area . 0.9m2; Available Length . 10”, 20”, 30”, 40” Inner Diameter . 28mm; Outer Diameter . 69mm; Integrity test