Bottletops Or Filtration Cups For Sterile Laboratory Filtration
Bottletops or filtration cups help laboratories filter liquids efficiently while supporting sample integrity and workflow consistency. The visible product range includes sterile bottle-top filters, cellulose nitrate membrane filter units, PES bottle-top filters, 96-well filter plates and related filtration accessories for laboratory, research and quality control teams.
- Sterile Filtration: Bottle-top filters support preparation of aqueous solutions, buffers, media and laboratory liquids where clean filtrate collection is required.
- Membrane Selection: PES and cellulose nitrate membrane options help match filtration performance to the liquid type, binding requirements and throughput expectations.
- Volume And Thread Compatibility: Select 150 ml, 250 ml or 500 ml style formats and confirm GL33 or GL45 compatibility before purchase.
- Microplate Filtration: 96-well filter plates support higher-throughput sample preparation where multiple samples must be processed in parallel.
How To Choose Bottle-Top Filters And Filtration Cups
Start by confirming the liquid type, required sterility, membrane pore size, bottle thread, volume and sample throughput. A PES bottle-top filter may suit sterile filtration of aqueous laboratory solutions, while cellulose nitrate membrane filter units can support general filtration workflows for water and compatible aqueous samples.
- Pore Size: Match 0.45 μm or other available pore sizes to the required clarification or filtration procedure.
- Membrane Material: Choose PES, cellulose nitrate, glass fibre or other membrane formats based on binding, flow rate and chemical compatibility.
- Format: Select bottle-top filter units for bulk liquid filtration or 96-well filter plates for parallel sample preparation.
- Workflow Fit: Check sterility, gamma irradiation, lot traceability, bottle connection, vacuum setup and sample volume before ordering.
Build A Complete Filtration Workflow
For a complete setup, pair bottletops or filtration cups with Laboratory Membrane Filters, Syringe Filters and Laboratory Filtration Hardware Or Accessories. Broader procurement can also be supported through Laboratory And Scientific Equipment and Labfriend product pathways.
Support For Australian Laboratory Procurement Teams
John Morris Group has supported scientific and technical customers since 1952 and operates with ISO 9001 certification. Our factory-trained engineers and product specialists help Australian laboratories, universities, life science teams, microbiology groups and QA facilities select bottletops or filtration cups that match membrane type, pore size, bottle thread, sterility and throughput requirements. Contact 1300 501 555 for procurement support.
Frequently Asked Questions
What Are Bottle-Top Filters Used For?
Bottle-top filters are used to filter laboratory liquids such as aqueous solutions, buffers, media and samples, often with vacuum assistance and direct collection into a compatible bottle.
What Is The Difference Between PES And Cellulose Nitrate Filters?
PES membranes are commonly selected for low-binding sterile filtration workflows, while cellulose nitrate membranes are often used for general aqueous filtration where compatibility suits the sample.
How Do I Choose The Right Filtration Cup?
Choose by confirming sample volume, membrane material, pore size, sterility, bottle thread, vacuum compatibility and whether the workflow requires single-sample or multiwell filtration.