Test tubes are a staple in laboratories, research facilities, and medical settings, but their usefulness extends far beyond the scientific world. Whether used for mixing chemicals, storing samples, or even as unique storage solutions for specialty products, test tubes are designed to be both functional and versatile. At Discount Vials, we take pride in offering high-quality test tubes made right here in the USA. Crafted from Type 1 borosilicate glass, our test tubes are built to withstand high temperatures, sudden temperature changes, and the demands of various industries. With threaded tops and rounded bottoms, they provide a secure and reliable storage option for professionals and hobbyists alike.

Our test tubes come in a variety of sizes, including 13 mm (1/2"), 16 mm (5/8"), and 20 mm (3/4"), making them suitable for a wide range of applications. They are designed with a deep 415 GPI thread finish, ensuring that the included screw caps fit securely. Each tube comes with an F-217 foam-lined screw cap for standard use, while an optional 14B rubber-lined screw cap is available for more rigorous applications such as autoclaving and storing volatile substances. This level of durability and precision makes our test tubes an excellent choice for laboratories, medical facilities, and even small businesses that require high-quality storage solutions.

Beyond the lab, our test tubes serve a variety of practical and creative purposes. They are commonly used in the cigar industry as protective storage for individual cigars, helping to preserve freshness and prevent damage. The food industry has also adopted test tubes for premium storage solutions, such as holding vanilla beans, spices, and specialty salts. Their airtight seal ensures that delicate flavors and aromas remain intact for extended periods. Even the cosmetic and skincare industry has found innovative ways to incorporate glass test tubes, using them for luxury product samples, bath salts, and essential oil blends.

Whether you need test tubes for scientific experiments, medical research, creative packaging, or personal storage, Discount Vials has the perfect solution. Our commitment to American manufacturing means you can trust in the quality and reliability of every product. With a variety of sizes, secure screw-top closures, and durable borosilicate glass construction, our test tubes are designed to meet the highest standards. Explore our selection today and discover how these essential tools can benefit your work, projects, or business.