The silicone sealing ring matches the screw connection piece and has good sealing properties. Due to the PTFE layer on one side of the sealing ring, there is a certain inertness of the material. The included hole allows the insertion of glass rods, olives, hoses, etc.
OD = 22mm
ID = 12mm
Closure Standard GL25
Fits tube 11-13mm
Temperature resistant from −200 to +250 °C
Brand : Duran