Borosilicate Glass Disposable Culture Tubes

This case of 2,000 culture tubes is manufactured from Type I, Class B borosilicate glass with a 5.1 expansion coefficient. Each tube measures 6mm OD by 50mm in length, sized to fit standard lab racks and holders used in educational, research, and analytical environments, and suited to microbiology, chemistry, and molecular biology work requiring reliable sample containment. The tube features a smoothly rounded bottom and a fire-polished, rimless top that accepts stoppers, cotton plugs, or film for culture growth, storage, or transport. Its disposable design eliminates the need for cleaning between uses, supporting a more efficient lab workflow. Each tube has an approximate overflow volume of 0.75mL. The tubes are packed in trays with inner packs of 100 for organized storage.