3L Wide-mouth High Efficiency Erlenmeyer Flask Multifunctional Transfer Cap with TPE Tube ( 50cm 1/4" ID 7/16" OD), Vent Filter (0.22 μm), without Flask, Sterile, 1/pk, 4/cs - C10311-DZB050B Injection Pens Polypropylene plug seal caps

Polypropylene plug seal caps

Aluminum films are also the best choice for preventing evaporation as they are completely impermeable to gas and liquids

NEST Scientific 715011

This creates a more physiologically relevant environment

3L Wide-mouth High Efficiency Erlenmeyer Flask Multifunctional Transfer Cap with TPE Tube ( 50cm 1/4" ID 7/16" OD), Vent Filter (0.22 μm), without Flask, Sterile, 1/pk, 4/cs - C10311-DZB050B Injection Pens Polypropylene plug seal capsThis is the transfer cap only, shaker flasks are sold separately The multifunction caps offer additional parts to improve on the simpler bi directional design: The cap features a built in hydrophobic membrane for enhanced gas exchange. This means the shaker flask can be place directly into an incubator, no need to change vessels. The external transfer tube features a T junction with a one way Luer lock sampling valve. This allows small samples to be