Culture tubes with DIN thread and screw caps are used for growing cultures from liquid media and for storage under sterile conditions.– With DIN thread and screw cap from PBT for airtight sealing (also available without the screw cap) – High tightness due to PTFE-coated silicone seal – Cultivating, storage and transport of microorganisms – – Culture tubes with DIN thread and screw caps are used for growing cultures from liquid media and for storage under sterile conditions.– With DIN thread and screw cap from PBT for airtight sealing (also available without the screw cap) – High tightness due to PTFE-coated silicone seal – Cultivating, storage and transport of microorganisms – –