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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.
【Premium Filtration Kit】Includes: 500ml Plastic bottle, 500ml funnel, 0.22μm PES membrane, top cap, filter housing
【Lab-Grade Filtration Performance】Ultra-fine PES membrane provides exceptional microbial retention for contamination-sensitive applications, while high-throughput design accelerates liquid processing workflows in cell culture and laboratory solutions
【Multi-Scenario Applications】This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
【Multi-Scenario Applications】 This system seamlessly transitions from lab filtration (sterilizing cell culture media, clarifying protein/buffer solutions) to industrial fluid processing (removing particulates from oils and solvents), and extends to...
The ceramic Buchner funnel features uniform pore distribution for consistent filtration results. Comes with 100 pcs 80 mm qualitative filter papers (pre-wetting recommended for a secure seal and optimal performance).
Includes 9 different size rubber stoppers to ensure tight, leak-free connections between the funnel and filtration flask, maintaining stable vacuum pressure during use.
The 1000 mL borosilicate glass filtering flask offers excellent chemical resistance and thermal shock durability, allowing safe use under temperature changes while providing clear visibility of the filtration process.
This glass filtration set, when paired with a oilless vacuum pump, accelerates the filtration process. It is suitable for the rapid processing of large liquid volumes, making it an essential tool for teaching labs, and scientific research
This complete filtration kit includes a 1000 mL vacuum flask, ceramic Buchner funnel, 9 rubber stoppers, and 100 filter papers, ready for vacuum filtration, chemistry labs, and teaching demonstrations.
Last update on 2026-09-01 / 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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