Chemically resistant seal made from PTFE (Teflon).
It’s outer diameter is 41 mm at 0,3 mm thick.
Usable for all containers with a GL45 screw cap, for example Simax bottles starting at 100 ml.
Cheap but effective alternative to expensive fully fluorinated caps.
this product is hand-made, which means that it has been checked for any problems that could hinder its use, but also that different Products may vary slightly in appearance.