Manufactured at special asepticall halls from PET with thick walls and crush-resistant corners. They are ideal for taking, transporting and storing of sterile samples for microbiological analysis. The space-saving square shape with wide neck GL 50 makes filling and pouring easy. The caps with large ridges for increased grip feature a self-locking mechanism and internal security ring. The crystal-clear bottle body allows the user to visually check the integrity of the sample. The bottles are available in different types, also with sodium thiosulphate.