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Ensuring the purity of liquids is crucial in laboratory settings, and reliable filtration is key. Bottletop lab filters offer a convenient and efficient way to sterilize or clarify solutions. Selecting the appropriate filter for your specific application can significantly impact experimental accuracy and safety.
【Size and Specification】: The Vacuum Filter Units a capacity of 500 mL. It is equipped with a neck adapter with a diameter of 90 mm, respectively. The pore size of the polyethersulfone (PES) membrane is 0.22 μm.
【Convenient and Efficient】: With a disposable design and individual packaging, this product can be used immediately after opening and set up your filtration system swiftly. It can save time for operations and improve experiment or production...
【Filter Precision】: The polyether sulfone (PES) membrane provides more flux and faster liquid flow. It intercepts kinds of particles and impurities effectively and targetedly, finishing precise filtration.
【Wide Adaptability】: Suitable for various liquid filtration scenarios, including laboratory sample processing, this product is also compatible with common vacuum systems.
【CUSTOMER SERVICE】:If you encounter any problem, please contact us. we will help you solve the problem as soon as possible.
【Safety】Polystyrene filter funnel has a 250mL capacity and a 45mm diameter polyethylene neck adaptor with an angled hose connector that simplifies vacuum line attachment Gamma sterilization.
【Applications】Polyethersulfone (PES) membrane has a 0.22m pore size and 64sq cm area; provides the fastest flow rates and highest throughput(could filter 1.5~2L), lowest protein binding and low extractables, and best filtering of cell culture media.
【Packing】Individually packaged, sterile, and certified nonpyrogenic; designed for filtering and storing cell culture media, biological fluids, and other aqueous solutions
Polyvinylidene fluoride (PVDF) membrane with 0.22 micron pore size provides good flow rates and low protein binding and low extractable, and best filtering of cell culture media
Engraved graduations ensure high accuracy and easy measurement
Virgin polystyrene for optical clarity and consistency
This bottle top is compatible with Advangene 150ml Vacuum Filtration System
Last update on 2026-07-17 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Bottletop Lab Filters
Comparison Tips
When comparing options, consider the throughput and flow rate, especially if filtering large volumes or viscous liquids. Check for sterility assurance (gamma-irradiated) if aseptic technique is critical. Ensure the filter's vacuum adapter fits standard vacuum tubing. Look for filters with clear volume markings and leak-proof seals for reliable performance.
Frequently Asked Questions
What is the primary use of a bottletop filter?
Bottletop filters are primarily used for the sterile or clarification filtration of laboratory liquids, such as cell culture media, buffers, and aqueous solutions, directly from a storage bottle.
How do I choose the correct pore size?
For sterile filtration, a 0.22-micron pore size is generally recommended as it retains bacteria. If you need to remove finer particles, a smaller pore size might be necessary, while larger pore sizes can be used for clarification.
What is the difference between cellulose nitrate and PVDF membranes?
Cellulose nitrate membranes are suitable for aqueous solutions but can be degraded by many organic solvents. PVDF membranes offer broader chemical compatibility and are often preferred for filtering aggressive solvents and chemicals.
Are these filters reusable?
Bottletop filters are designed for single use. Reusing them can compromise their integrity, lead to contamination, and affect filtration efficiency. Always use a fresh filter for each filtration process.
How important is the filter volume capacity?
The volume capacity should match the amount of liquid you typically filter. Choosing an appropriate capacity helps prevent overflow, reduces the number of filtrations needed, and minimizes waste of both the liquid and the filter unit.
What does 'gamma-irradiated' mean for a filter?
Gamma-irradiated indicates that the filter has been sterilized using gamma radiation. This ensures the filter is sterile and ready for aseptic use immediately upon opening, which is crucial for applications like sterile cell culture media preparation.
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