These Corning® Erlenmeyer Flask Aseptic Transfer Caps are sterile (10-6 SAL), individually double bagged and fit the 3L Corning® Polycarbonate Erlenmeyer flasks. The venting port ends in a 50mm diameter vent filter with a 0.2µm pore PVDF membrane and a barbed fitting. The liquid transfer port has an internal end with a rigid polypropylene dip tube angled to reach the bottom of the flask and on the external side a 1/4 inch ID (6.4 mm), 3/8 inch (9.5 mm) OD chemically resistant, heat sealable flexible tubing, ending in a medical grade polycarbonate (MPC) male disconnect with a female sealing cap