13 mm (1/2") Tubes
13 mm (1/2") Glass Tubes are precision-made from Type I borosilicate glass, offering exceptional heat resistance, clarity, and chemical durability. These threaded, round-bottom test tubes feature a thick rim and uniform wall thickness, making them ideal for laboratory, research, chemicals, samples, and spoilage testing applications.
Complete your test tubes with a 13-415 screw cap, available with either F-217 foam liners for standard use or 14B rubber liners for harsh materials and autoclaving (steam sterilization). Designed for consistency and long-term performance, these test tubes are a trusted choice for professionals who need dependable glassware for scientific and analytical work.
13 mm (1/2") Glass Tubes are precision-made from Type I borosilicate glass, offering exceptional heat resistance, clarity, and chemical durability. These threaded, round-bottom test tubes feature a thick rim and uniform wall thickness, making them ideal for laboratory, research, chemicals, samples, and spoilage testing applications.
Complete your test tubes with a 13-415 screw cap, available with either F-217 foam liners for standard use or 14B rubber liners for harsh materials and autoclaving (steam sterilization). Designed for consistency and long-term performance, these test tubes are a trusted choice for professionals who need dependable glassware for scientific and analytical work.