This Erlenmeyer Flask polypropylene aseptic transfer cap with dip tube and 0.2μm vent, venting port ends in a 50mm diameter vent Filter (Pack of 5) with a 0.2µm pore polyvinylidene difluoridemembrane and a barbed fitting. 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 6.4mm I.D.(heat sealable flexible tubing ending medical grade Polycarbonate (MPC) male disconnect with a female sealing cap. Sterile. Diameter: 48mm. Color: Orange. Cap Style: Screw Cap. Dip Tube (I.D. x O.D.): 6.4 x 9.5mm. Tubing Connection: MPC Male Disconnect. Fits: Corning® 2L Polycarbonate Erlenmeyer flasks. Corning® #: 431447.