Corning Erlenmeyer Flasks are now available as closed system solutions. They are sterile and arrive individually doubled-bagged and preassembled. They are available for the 1L, 2L and 3L flask sizes. The preassembled transfer caps have two ports. One port ends in a 0.2 µm filter, and the other port is chemically resistant, heat sealable flexible tubing, ending in either a male Luer lock or a male polycarbonate quick connect. The dip tube reaches all the way to the bottom of the flask for easy aseptic transfer of your liquid handling processes.