DURAN® Original GL 45 Laboratory Bottle, clear, with screw cap and pouring ring, PP, blue, 500 mL. with DIN 168-1 thread graduated. See all 16 items in this product family. Complies with ISO 4796-1. Manufactured from borosilicate glass 3.3. Standardised GL-thread and matching cap system for particularly tight sealing and simple, clean pouring out. Retrace Code, and certificate for manufacturing lot traceability.