Laboratory glass filters support precise vacuum filtration, precipitate separation and chemical analysis workflows in research and quality control laboratories. Source DURAN filter plates, sintered glass discs and porosity filter options through our Laboratory range, with supply support from Labfriend.
Laboratory Glass Filters
Laboratory Glass Filters for Vacuum Filtration and Chemical Analysis
Laboratory glass filters are used for filtration, separation and purification tasks where reusable sintered glass media can replace or support disposable filter papers. This high-depth category includes DURAN filter plates and glass filter discs in multiple diameters and porosity grades for analytical filtration, coarse precipitate filtration and fine particle separation.
- Visible Product Range: DURAN filter plates, filter discs and sintered glass filters in 24 mm, 50 mm and 90 mm diameter options.
- Supported Supply: Available through Labfriend and the wider John Morris Group laboratory supply network.
- Material: Borosilicate glass 3.3 filter plates and discs for chemical resistance and durable laboratory filtration use.
- Porosity Options: Visible options include porosity grades 1, 2, 3 and 4 for different particle retention and flow requirements.
- Typical Applications: Vacuum filtration, precipitate collection, gas dispersion, analytical filtration, chemical purification and preparation of laboratory media.
Selecting Laboratory Glass Filters by Porosity and Diameter
Correct filter selection depends on the particle size to be retained, required flow rate, chemical compatibility and the filter holder or apparatus being used. Coarser porosity grades support faster filtration and larger precipitates, while finer grades suit smaller particles and analytical work where more precise retention is required.
- Porosity 1: Suitable for coarse precipitate filtration, gas dispersion and coarse grain material filtration.
- Porosity 2: Suitable for medium filtration, crystalline precipitates and washing of gases.
- Porosity 3: Suitable for analytical work with medium precipitates.
- Porosity 4: Suitable for analytical work with fine precipitates.
- Diameter Matching: Select 24 mm, 50 mm or 90 mm filter plates according to the compatible holder, sample volume and filtration area required.
Related Categories for Laboratory Filtration Workflows
Laboratory glass filters are commonly purchased with filtration equipment, filter holders and laboratory consumables used in the same workflow. Buyers may also need Laboratory Filtration Hardware or Accessories, Laboratory Filter Papers or Bottletops or Filtration Cups for complete filtration setup planning.
- Laboratory and Scientific Equipment: Supports analytical laboratories sourcing instruments and filtration systems for sample preparation.
- Industrial Filtering and Purification: Relevant for laboratories requiring filtration and purification products for liquids, gases and process samples.
- Food and Feed: Supports food testing laboratories using filtration during sample preparation, clarification or analytical workflows.
Australian Support for Laboratory Glass Filter Procurement
John Morris Group supports Australian laboratories, research teams and quality control facilities with laboratory glass filters, compatible filtration hardware and related consumables. Established in 1952, ISO 9001 certified and backed by factory-trained engineers, our AU team can help match laboratory glass filters to your porosity, diameter, holder and filtration workflow requirements. Contact 1300 501 555 for support.
Frequently Asked Questions
What are laboratory glass filters used for?
Laboratory glass filters are used for vacuum filtration, precipitate collection, chemical purification, gas dispersion and analytical filtration. They are commonly used where chemical resistance and reusable filtration media are required.
How do I choose the correct porosity for a glass filter?
Select the porosity according to the smallest particles that must be retained and the required flow rate. Coarser grades support faster flow and larger particles, while finer grades support analytical filtration of smaller precipitates.
Can John Morris Group help match filter plates to filtration apparatus?
Yes. John Morris Group can help review the required filter diameter, porosity grade, holder compatibility and filtration application to support correct laboratory glass filter selection.