Best PTFE Lab Funnels of 2025

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 500ml Funnel is an essential tool for separating liquids with different densities. Made of durable borosilicate glass, it ensures you can handle a variety of substances without fear of breakage. Its conical design promotes efficient separation, allowing you to quickly and effectively isolate the components you need. With a generous capacity of 500ml, you can work with larger volumes, making your experiments and processes more convenient.

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 Conical Funnel is a 60 ml separatory funnel designed for efficiently separating liquids with different densities. Made from high-quality borosilicate glass, it offers durability and resistance to thermal shock. The conical design enhances separation, making it easier for you to obtain pure layers of liquid. Its 60 ml capacity is ideal for various laboratory applications, providing convenience for small-scale experiments and precise measurements.

The stonylab Separatory Funnel is a 1000 ml glass funnel designed for efficiently separating liquids with different densities. Made from high-quality borosilicate glass, it ensures durability and resistance to thermal shock. The conical design of the funnel allows for effective separation of liquids, making it a valuable tool in any laboratory setting. You will appreciate the convenience it brings when working with various liquid mixtures, enhancing your overall efficiency and accuracy in experiments.

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.

The StonyLab Pressure Equalizing Funnel is an essential piece of laboratory glassware designed for transferring liquids safely and efficiently. Made from durable borosilicate glass, it allows you to control the transfer of liquids with its cylindrical shape and PTFE stopcock, making it ideal for slowly adding reagents. Its 24/40 standard joint at both ends ensures a secure connection with other laboratory instruments. With a 500 ml capacity and precise measurements, this funnel is both heavy-duty and reusable, providing convenience for your experiments.

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 ADAMAS-BETA Addition Funnel is designed for ease of use in laboratory settings. Its constant pressure feature allows you to add liquids without needing to open the stopper, ensuring a smooth flow. This design keeps internal pressure unchanged, which helps in measuring gas volumes accurately. Made from high-quality glass, this funnel is durable and can withstand typical thermal variations during chemistry processes. Choosing this funnel enhances precision and convenience in your experiments.

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.