Bottletop Filters
Bottletop filters are a practical way to streamline vacuum filtration of media, buffers, and aqueous solutions directly from standard bottles. Explore trusted options from Merck, Thermo Scientific Nalgene, Whatman, Corning, and Fisherbrand, including common pore sizes and membrane choices for routine sterilising filtration or clarification. Use brand filters to quickly compare formats and select the best fit for your workflow.
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FAQ
Bottletop filters are used for quick vacuum filtration of lab liquids such as media, buffers, and aqueous solutions directly from a bottle. They help streamline sterile filtration or clarification steps and reduce handling time. Common choices include Merck and Thermo Scientific Nalgene systems, plus Corning, Whatman, and Fisherbrand options.
Choose pore size based on your goal: ~0.22 µm is commonly used for sterilising filtration of media and buffers, while ~0.45 µm is often used for clarification when sterility is not required. Compare equivalent formats across Merck, Corning, Fisherbrand, Whatman, and Thermo Scientific Nalgene to match your workflow.
Membrane choice depends on chemistry and sample sensitivity. PES is widely used for aqueous solutions and offers good flow with low protein binding, while PTFE suits harsher solvents and nylon provides broad compatibility. Check the product description and compare trusted brands such as Merck, Corning, Whatman, Fisherbrand, and Thermo Scientific Nalgene.
To reduce clogging, pre-clarify samples (settle or prefilter), avoid overloading with particulates, and choose the right membrane and format for viscosity. For challenging samples, consider a staged approach or larger surface area where available. Bottletop systems from Merck, Corning, and Thermo Scientific Nalgene are commonly used in routine workflows.
Use the Brand Filters section to narrow results instantly by manufacturer. You can filter the Bottletop Filters category to view Merck, Thermo Scientific Nalgene, Whatman, Corning, or Fisherbrand ranges without leaving the page, making it easier to compare similar pore sizes, formats, and membranes side by side.
Accessibility = 15 indicates products are set up across all supported countries, helping ensure consistent availability and merchandising across the EU. This page’s product tables only include Accessibility = 15 items, so selections are suitable for multi-country campaigns. You’ll still see a strong mix across key brands like Merck, Thermo Scientific Nalgene, Corning, Whatman, and Fisherbrand.
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