The POPE 8621 1900mL Dewar Flask is a cylindrical glass flask with a 120mm inner diameter and a 190mm height. Made with a combination of glass and aluminum, this flask is perfect for use in various laboratory settings such as physical, dental, medical, and microbiological laboratories. Its large volume makes it ideal for storing and transporting large quantities of liquids. Manufactured in the United States by the trusted brand Pope, this flask ensures quality and reliability for your laboratory needs.