This 20ml graduated test tube features a classic straight-rim design with a smooth, fire-polished mouth to ensure precision pouring. Expertly crafted with superior glass clarity, it is a standard laboratory instrument for small-scale reactions and can be safely heated. Made from premium 3.3 borosilicate glass, it provides excellent thermal and corrosion resistance, ensuring long-lasting durability for professional testing. Guaranteed quality for any chemical laboratory environment. Custom logos and specifications are available.
