This rare vintage PYREX glass 6000mL single neck round bottom boiling flask is a valuable addition to any laboratory. Made by Corning Pyrex in the United States, this flask is crafted from borosilicate glass, making it durable and resistant to heat. With a volume of 6000 mL and a height of 15 inches, this flask is perfect for use in various disciplines such as physical, dental, medical, microbiological, and biological laboratories. Its round bottom design allows for efficient boiling and mixing of contents, making it a practical and essential piece of lab glassware for researchers and scientists.