Corning® GL45 Gray Polypropylene Vented Screw Cap with 0.22 µm PTFE Membrane

Description

These Corning® gray polypropylene vented caps have a 0.22 µm polytetrafluoroethylene (PTFE) hydrophobic membrane to allow sterile gas exchange while preventing contamination. They are autoclavable at 121°C, have a GL45 thread and use a linerless plug seal design for efficient sealing.

These are various sizes and types of screw caps for use with storage bottles.