Membrane screw cap

from PP, blue, with welded-in PTFE membrane for pressure equalisation

For all GL 45, GL 32 and GL 25 threads. Ideal for autoclaving processes because the membrane permits pressure equalisation and tight sealing. Hence the risk of contamination is greatly reduced. Ingress of liquids or solids is prevented and the bottle contents remain sterile.

Typical applications:

Storage or transport of gas generating media, autoclaving of media.