Universal membrane for tissue culture applications. Meets biological and pharmaceutical sterilization requirements. These disposable filter units have a 0.2 µm pore size Supor® PES (polyethersulfone) membrane, which is inherently hydrophilic and exhibits low protein binding, low extractable levels, and high flow rates. Graduated upper chambers and receivers feature a side-arm with a cellulosic vent plug and quick disconnect tubing adapter. Blue collar. Certified sterile, non-cytotoxic, and non-pyrogenic.