Best PTFE Lab Funnels of 2026

The stonylab Separatory Funnel is a vital tool for conducting liquid/liquid extractions and separating non-soluble mixtures efficiently. With a capacity of 125 ml and a PTFE stopcock, it allows you to control the flow of liquids smoothly. The standard 24/40 joint ensures compatibility with various laboratory setups, making it versatile for different tasks. Constructed from high-quality borosilicate glass, it can withstand temperatures up to 200°C, providing durability and reliability for your experiments.

The stonylab Glass Separatory Funnel is designed for precise separation of immiscible liquids, making it easier for you to control extraction and measure accurately in your laboratory work. It features a clearly visible graduated scale, allowing you to monitor liquid levels conveniently. The funnel includes a PTFE stopcock and a plastic top stopper, which help you manage flow and prevent leaks during use. Made from durable high borosilicate glass with thick walls, it can withstand temperatures up to 200°C, ensuring long-lasting performance and safety.

The Eisco Separating Funnel is crafted from high-quality polypropylene, ensuring durability and reliability. With a 500ml ungraduated capacity, it is perfect for a range of laboratory applications. The stopcock features a self-lubricating PTFE plug, allowing for smooth operation and preventing leaks. Additionally, the leak-proof threaded screw cap provides added security, meaning you can work without worrying about spills. This funnel measures 8 inches long and 2.25 inches wide, giving you a practical size for your experiments.

The Eisco Dropping Funnel is made of high-quality borosilicate glass, ensuring durability and resistance to thermal shock. Its cylindrical design allows for easy pouring, making it ideal for various laboratory applications. The open top provides convenient access for filling, while the PTFE key stopcock offers precise control over liquid flow. This 500ml capacity funnel is perfect for both science and home laboratories, giving you versatility and efficiency in your experiments.

The Labasics Separatory Funnel is a 1000 ml glass funnel designed for efficiently separating liquids with different densities. Its 24/29 joint with a polypropylene cap ensures a secure fit, enhancing usability. Made from G3.3 borosilicate glass, it offers high transparency and excellent resistance to acids and alkalis, making it suitable for various laboratory applications. The PTFE stopcock provides a reliable seal, allowing you to control the flow of liquids with ease and precision.

The stonylab Pressure Equalizing Funnel is designed for controlled addition of reagents in closed system experiments, helping you to prevent air contact and reduce solvent evaporation. Made from durable borosilicate 3.3 glass, it resists pressure and chemical corrosion, making it suitable for everyday lab use. The PTFE stopcock and pressure equalising tube allow for smooth and precise dripping of solutions, enhancing your experiment’s accuracy. Its 50ml cylindrical design with standard 24/40 joints fits easily with common lab glassware, offering convenience and compatibility for your laboratory setups.

The Eisco Separating Funnel is a practical lab tool designed for efficient liquid separation. Made from durable borosilicate 3.3 glass, it offers excellent resistance to thermal shock, ensuring longevity in your experiments. The 250ml capacity allows for handling a decent volume of liquids, making it suitable for various applications. Additionally, the PTFE key provides a reliable seal, preventing leaks and ensuring safe operation. With a joint size of 19/26, this funnel can easily fit with standard lab apparatus, adding to its versatility and convenience for users.