The Ace Glass 40mL Mineral Oil Bubbler is a high-quality glassware product designed for various laboratory settings, including physical, dental, medical, microbiological, and biological laboratories. Made in the United States, this bubbler features a 90º angle and an 8mm outer diameter tube connection, allowing for easy and precise setup. With a volume of 40mL, this mineral oil bubbler by Ace Glass is ideal for collecting and separating gas bubbles in laboratory experiments, making it a valuable addition to any laboratory equipment collection.