These 16×125 mm Pyrex Test Tube round bottom glass test tubes are useful for the handling of sputum specimens. Digestion, shaking, neutralizing, and centrifuging can be performed in one container. They are also useful for other clinical and microbiological tests. Black Screw caps resist the effects of temperature and steam. These tubes have a black polypropylene GPI 38-400 threaded cap with a Polytetrafluorethylene (PTFE) liner. This is the best-branded test tube which is ideal for sample keeping, and laboratory use. Brand: Pyrex, Origin: China, Supplier: Labtex Bangladesh 

Pyrex Test Tube with Black Cap 5 Inch Clear Glass Tube – Durable, Safe, and Ideal for Laboratory Use

The Pyrex Test Tube with Black Cap 5 Inch Clear Glass Tube is a versatile and essential laboratory tool. Made from high-quality Pyrex borosilicate glass, it provides excellent resistance to heat, chemicals, and mechanical stress. Its 5-inch length is perfect for educational labs, research experiments, and professional chemical handling.

This test tube comes with a secure black cap, which prevents contamination, spillage, and evaporation of samples. The clear glass allows full visibility of liquids, enabling accurate observation of reactions and solution levels. Because of its durable construction, the tube withstands repeated use, heating, and cooling without cracking or deforming.

Unlike regular glass test tubes, this Pyrex model ensures consistent performance and long-term reliability. It suits a wide range of laboratory applications, from sample storage to chemical analysis. Its smooth surface makes cleaning and sterilization easy, which helps maintain a hygienic workspace.

✅ Key Features

• Made from premium Pyrex borosilicate glass
• 5-inch clear glass tube for precise observation
• Comes with a secure black cap to prevent spillage and contamination
• Heat-resistant, chemically stable, and reusable
• Smooth surface for easy cleaning and sterilization
• Durable and long-lasting for repeated laboratory use
• Ideal for educational, research, and professional laboratories

🧪 Applications

This 5-inch Pyrex test tube with black cap is widely used in chemistry labs, biology labs, pharmaceutical research, and educational institutions. It is perfect for sample storage, mixing, heating, and chemical reaction observations. Students, researchers, and lab technicians prefer it for its reliability, clarity, and safety.

Moreover, its compact size and secure cap make it suitable for transporting small liquid samples safely, ensuring minimal risk of spillage. Whether in teaching labs or research settings, this test tube provides accuracy, durability, and convenience in one package.

Available now at Labzo Bangladesh (Labzobd.com) – your trusted source for high-quality Pyrex glassware and laboratory instruments in Bangladesh.