Best Lab Filtering Flasks of 2025

The United Scientific Filtering Kit is a versatile lab accessory that offers convenience and efficiency in your filtration processes. The kit includes a 500ml filtering flask, a 90mm porcelain buchner funnel, a hand vacuum pump with gauge, and all the necessary components for filtration. The filtering flask provides a large capacity for holding liquids, while the porcelain buchner funnel ensures effective filtration with its 90mm inner diameter. The hand vacuum pump with gauge allows you to easily create the necessary vacuum pressure for efficient filtration. With this kit, you can easily filter substances in the lab, saving time and effort. Made in India, the United Scientific Filtering Kit is a reliable choice for your filtration needs.

The United Scientific Filtering Flask has a generous 2000mL capacity and features a 1/2" tubing size, making it ideal for various laboratory applications. Its graduation range from 600 to 2000mL in 200mL increments allows for precise measurements, helping you achieve accurate results. Made from high-quality Borosilicate 3.3 glass, this flask can handle high temperatures and thermal shock, ensuring durability during use. Additionally, the dual scale graduations meet ASTM-E960 standards, providing you with reliable measurements every time, making your experiments more efficient.

The StonyLab 2L Flask is a high-quality borosilicate glass filtering flask that is perfect for pressure filtration or increasing flow rate for slow or difficult-to-filter solutions. With a capacity of 2000 milliliters, this flask is made of durable borosilicate glass and features a narrow mouth and tooled top finish. The handmade design ensures precision, with only a small error range of 2~3mm. StonyLab is committed to providing top-notch products and excellent customer service. If you receive a damaged flask, simply contact us and we will resolve the issue to your satisfaction.

Introducing the United Scientific FG5340-1000 Filtering Flask, a laboratory-grade borosilicate glass flask designed for all your filtration needs. With a generous capacity of 1000mL (1L) and a convenient 3/8" tubing size, this flask allows you to filter large volumes of liquid with ease. The dual scale graduations, ranging from 400mL to 1000mL with 50mL intervals, provide precise measurements for accurate experimentation. Made from industrial quality Borosilicate 3.3 glass, this flask can withstand high temperatures and thermal shock, ensuring its durability and longevity. Plus, it is dishwasher safe, making cleaning a breeze. Get ready to experience a smooth and consistent filtration process with the United Scientific FG5340-1000 Filtering Flask.

The Fristaden Lab Filtration Apparatus is a versatile and durable filtering kit designed for various applications. Made with tough borosilicate beaker glass, this apparatus can handle boiling liquids and strong vacuums without compromising its integrity. Whether you're conducting chemistry experiments in a lab or school, making e-juice or distilling oils, filtering essential oils, or making soap, this kit has got you covered. The built-in vacuum system allows for fast and efficient filtration, ensuring that you can separate components or impurities quickly and effectively. With easy setup and disassembly, cleaning and storing the apparatus is a breeze. Plus, it comes with a one-year warranty for added peace of mind.

The EISCO Filtering Flask is crafted from durable borosilicate glass, ensuring excellent resistance to breakage, making it perfect for various settings, from professional labs to home use. With a generous 5000mL capacity and clear graduation markings, you can easily measure and mix larger quantities. The integral side arm allows for convenient attachment of vacuum tubing, enhancing the filtration process. Additionally, the heavy walls are designed to withstand pressure, ensuring safety and efficiency during experiments. This flask also features a flat bottom, making it compatible with stir bars for easy mixing.

Introducing the QWORK 1L Filtering Flask, a high-quality and clear borosilicate glass flask that is perfect for all your lab filtering needs. With its narrow mouth and top finish, this flask allows for easy pouring and precise control. The 1000ml capacity and clear scale markings make it convenient to measure and monitor the liquid level. Whether you are filtering liquids or conducting experiments, this flask provides a clear view of the situation. And with the 100% Satisfied Service, you can enjoy a smooth and frustration-free experience for a whole month. Upgrade your lab equipment with the QWORK 1L Filtering Flask today!

The United Scientific Filtering Flask is crafted from high-quality borosilicate glass, ensuring durability and resistance to thermal shock. Its clear graduations, printed in durable white enamel, allow you to read measurements easily, making your experiments more accurate. This flask can withstand extreme temperatures, ranging from -50°C to 500°C, so you can use it for a variety of applications without worry. Additionally, its dimensions and a convenient 3/8" tubing size make it easy to handle and connect with other lab equipment, enhancing your workflow in the lab.

The EISCO Filtration Kit provides everything you need for effective vacuum filtration. With a complete six-piece set, including a 500mL glass filtering flask and a hand-held vacuum pump, you can perform filtration procedures with ease. The custom foam insert keeps all components protected and organized, making your lab experience more efficient. You will find this method much quicker than traditional gravity filtration, allowing you to separate solids from liquids faster. By engaging directly in the process, you’ll also gain a clearer understanding of the technique, enhancing your learning experience.

The EISCO Buchner Flask is made from durable borosilicate glass, ensuring it can withstand the rigors of any laboratory setting. With a generous 500ml capacity, it is ideal for various filtering applications, allowing you to handle larger volumes of liquids efficiently. The flask features both top and side 24/29 size sockets, providing versatility in connecting to other apparatus. Standing at 6.5 inches tall, this flask is compact yet functional, making it a great addition to your science or home lab. The side arm, measuring 1 inch, enhances usability by allowing easy access to the filtered liquid.