20 mm (3/4") Tubes
20 mm (3/4") Glass Tubes are manufactured from Type I borosilicate glass, providing superior heat resistance, clarity, and chemical durability for laboratory and research applications. These threaded, round-bottom test tubes feature a thick rim and uniform wall thickness, ensuring strength and consistency during handling, heating, and testing.
Each tube includes a 18-415 screw cap, available with F-217 foam liners for general use or 14B rubber liners for harsh materials and autoclaving (steam sterilization). Ideal for scientific research, spoilage testing, and laboratory analysis, these tubes deliver dependable performance and long-lasting reliability for professional environments.
20 mm (3/4") Glass Tubes are manufactured from Type I borosilicate glass, providing superior heat resistance, clarity, and chemical durability for laboratory and research applications. These threaded, round-bottom test tubes feature a thick rim and uniform wall thickness, ensuring strength and consistency during handling, heating, and testing.
Each tube includes a 18-415 screw cap, available with F-217 foam liners for general use or 14B rubber liners for harsh materials and autoclaving (steam sterilization). Ideal for scientific research, spoilage testing, and laboratory analysis, these tubes deliver dependable performance and long-lasting reliability for professional environments.