Best Polypropylene Lab Flasks of 2026

The Eisco 100ml Volumetric Flask is crafted from high-quality Borosilicate 3.3 glass, making it ideal for both professional laboratories and home use. Its 100ml capacity is calibrated to contain, giving you exact measurements for your experiments. The flask features a Class A tolerance, ensuring accuracy in your work, while the superior heat and chemical durability means you can confidently use it in microwaves and autoclaves. This makes it a reliable choice for any setting, providing convenience and peace of mind.

The Eisco 20ml Volumetric Flask stands out with its high-quality, heavy-duty 3.3 borosilicate glass, ensuring durability and reliability in your experiments. With a capacity of 20ml and a single white graduation mark, it provides accurate measurements, essential for precise lab work. The flask features a socket size of 10/19, adhering to DIN ISO 1042 standards, which guarantees compatibility with various laboratory equipment. Additionally, its chemical-resistant polypropylene stopper enhances safety by preventing contamination and evaporation, making it an ideal choice for your laboratory needs.

The Eisco 5ml Volumetric Flask is crafted from high-quality Borosilicate 3.3 glass, ensuring durability and resistance to thermal shock. Its precise 5ml capacity and single white graduation mark allow for accurate measurements, making it ideal for laboratory use. With a Class B tolerance of ±0.05ml, it provides reliable results for your experiments. The flask is fitted with a chemical-resistant 10/19 polypropylene stopper, which seals your samples securely, preventing contamination and ensuring safety during handling.