(This is the suggested replacement for 355127)· Made from optically clear polycarbonate.· Ideal for shaker culture applications· Vent caps available for applications requiring sterile gas exchange.· Sterilized by gamma radiation and certified nonpyrogenic· Rnase- and Dnase-free· Neck Style: Wide Mouth · Cap Diameter: 43 mm · Neck O.D. 43 mm (approx.)