Funnel Short Stem

The internal and external ribs create channels that allow trapped air to escape during filtration. Without these ribs, air can become trapped between the funnel and the receiving vessel, creating an air lock that stops liquid flow. This dual rib design is the best solution to this common problem, ensuring smooth, continuous filtration. It is the top rated feature for frustration-free laboratory work.

The 60° cone angle is the industry standard for laboratory funnels and is specifically designed to match standard filter paper when properly folded. This precision angle provides the best possible fit, preventing filter paper distortion that can compromise filtration results. For quantitative work where accuracy matters, this feature makes these funnels the top rated choice.

Yes, these funnels are manufactured from polypropylene and are fully autoclavable at standard sterilization temperatures (121°C). This makes them the best for sterile applications in microbiology, cell culture, and pharmaceutical settings. Their ability to withstand repeated autoclaving makes them the top rated reusable option, providing the best long-term value.

Polypropylene offers the best chemical resistance to aqueous solutions, dilute acids, dilute bases, alcohols, and many organic solvents. This excellent chemical resistance makes these funnels the top rated choice for diverse laboratory applications. However, they may not be suitable for strong oxidizing agents or concentrated chlorinated solvents. For most routine laboratory work, they provide the best compatibility.

These short stem funnels (Code 57211) are supplied in economical packs of 100 pieces. This bulk packing offers the best value for high-volume laboratories, teaching institutions, and facilities with frequent filtration needs. It is the top rated packaging choice for cost-effectiveness and ensuring adequate supply.

Short stem funnels, like these, are the best for general pouring into wide-mouthed vessels, for use in crowded workspaces, and for applications where the filtrate does not need deep guidance. Long stem funnels are better for reaching into narrow-necked containers. For everyday laboratory use and teaching applications, short stem funnels are often the top rated choice due to their versatility and convenience.

Yes, these funnels are manufactured from polypropylene conforming to US FDA 21CFR standards, making them the best for food contact applications. This compliance ensures they meet the top rated safety requirements for food processing, pharmaceutical, and clinical laboratory use, providing peace of mind for regulated industries.

Cleaning is simple due to the smooth interior walls: rinse immediately after use with an appropriate solvent. For thorough cleaning, wash with warm water and mild laboratory detergent using a soft brush if needed. Rinse thoroughly with distilled water. The funnels can also be autoclaved for sterilization. This ease of cleaning makes them the best for maintaining hygiene and the top rated for low-maintenance laboratory equipment.

For optimal performance, use standard 55 mm diameter filter paper with these funnels. The precision 60° cone angle ensures the best fit when the filter paper is properly folded. Using the correct size filter paper is essential for achieving the top rated filtration efficiency and preventing sample loss.