Test Tubes

DURAN® test tube with beaded rim or straight rim 
The test tubes are thick-walled and therefore mechanically very resistant, yet still retain good thermal shock resistance. 
 
DURAN® culture tubes with DIN thread and screw cap from PBT 
The culture tubes with DIN-thread can be tightly closed using PBT screw caps, so that the tubes are then particularly suited to the cultivation of micro-organisms or substance storage, etc. The contents only come into contact with the glass and PTFE seal.