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 3.2mm I.D.(heat sealable flexible tubing ending in a male luer lock (MLL) closed with a female luer sealing cap. Sterile. Diameter: 43mm. Color: Orange. Cap Style: Screw Cap. Dip Tube (I.D. x O.D.): 3.2 x 6.4mm. Tubing Connection: Male luer lock. Fits: Corning® 1L polycarbonate Erlenmeyer flasks. Corning® #: 431444.