LPS is dedicated to providing affordable laboratory filtration supplies to meet the needs of researchers and scientists around the world. Our range of products includes high-quality cellulose, glass fiber, paper and other membrane filters, syringe and bottletop filters, thimbles, and systems that are designed to help you achieve accurate and reliable results in your experiments.

Our products are available in various sizes and materials to suit your specific requirements. Whether you are conducting research in a university laboratory, performing testing at a pharmaceutical company, or carrying out experiments in a biotech start-up, we have the laboratory filtration supplies you need to get the job done.  Contact us for assistance in finding the ideal materials for your application.

Filtration

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  1. NanoGF™ Binderless Grade A-83 glass fiber filter media, 0.5micron retention, 4.7cm diameter - 100/pk, PK100
    Manufacturer: I W Tremont
    This new grade has a particle retention of 0.5µm. It has >20x loading capacity of an equivalent porosity MCE, CN, ePTFE or PVDF membrane and >15x the flow rate. Back pressure is nearly non-existent in comparison to surface membranes. Chemically inert, pure binderless borosilicate glass with no sizing additives or other surfactants. Low background noise in LC/GC/MS and very low extractables in presence of aggressive solvents. MFS/Advantec Equivalent: GC-50 47MM (100 per PK )
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    was $101.55 Special Price $96.31
  2. 250mL Bottle Top Filter, PES Filter Material, 0.22μm, 75mm, Sterile, CS24
    Manufacturer: CELLTREAT Scientific Products
    Fits on standard GL 45 threaded bottles Improved filter support provides faster flow rates Easy-to-read molded graduation marks on bottle top filter Larger membrane diameter for 250 & 500mL filters increases flow and reduces clogs for faster filtration 90mm diameter of 500mL membrane has 44% more filtration area than standard 75mm - Larger area, same price Angled hose barb adapter fits three size hose diameters and prevents the filter from tipping Printed lot number and expiration date on every bottle top Bold easy-to-read printed membrane and pore size for easy identification Polyethersulfone (PES) membrane is useful for high flow and low binding Nylon (PA) membrane has excellent chemical compatibility and does not require pre-wetting 0.22µm PES membrane is the first choice for sterile filtration of cell culture media 0.10µm PES membrane ideal for mycoplasma removal 0.45µm PES membrane ideal for solution clarification (24 per CS)
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    was $285.00 Special Price $211.46
  3. United Scientific™ Filter Paper, Circular, Grade 1, 24 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $34.20 Special Price $24.94
  4. Grade D cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1410-0900 Sartorius: FT-3-1104-090 (100 per PK )
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    was $91.31 Special Price $83.37
  5. EZlabpure™ Hydrophilic PVDF Syringe Filters, 0.45 µm Pore Size Membrane for Prefiltration and Sample Prep, 33 mm, Non-Sterile,100/PK
    Manufacturer: Foxx Life Sciences
    EZlabpure™ Hydrophilic PVDF Syringe Filters, 0.45 µm Pore Size Membrane for Prefiltration and Sample Prep, 33 mm, Non-Sterile,100/PK (100 per PK )
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    was $160.63 Special Price $150.18
  6. Sheet PVDF Hyphbic 0.45µ 150 X 150mm 5/Pk
    Manufacturer: GVS North America
    Sheet PVDF Hyphbic 0.45µ 150 X 150mm 5/Pk (5 per PK )
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    was $28.36 Special Price $22.74
  7. Grade F cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1825-090 Ahlstrom Equivalent: 1510-0900 MFS/Advantec Equivalent: GF7590MM Sartorius: FT-3-1105-090 Environmental Express (CP) Equivalent: FG75090MM (100 per PK )
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    was $128.31 Special Price $90.81
  8. Sterile PP Syringe Filters, 0.45(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    HydroBlokr™ functions via use of proprietarily designed, multi-layered series of membranes placed within an ultrasonically welded device which creates a check-valve effect when wet. The functional membrane within the series immediately reacts in presence of aqueous solution by stopping and blocking further passage1 . The materials create a highly retentive pore structure which helps protect the user environment2 . The extraordinarily high flow rates compared to other simple hydrophobic barrier filters creates a high-flow, less restrictive path for vacuum and positive pressure to pass. Unlike simple hydrophobic barrier filters, once HydroBlokr™ is wetted it halts operation and locks out further usage until replaced. No further aspiration is possible, thus helping to protect your sample3 and making it plainly obvious the filter has become wet and replacement is necessary. (100 per PK )
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    was $261.37 Special Price $208.31
  9. Glass Base Only 47mm
    Manufacturer: Kimble Chase
    Filtration Microfiltration Assembly 47 mm with Glass Support Ultra-Ware (3) Fritted Glass Support Base 47 mm These vacuum microfiltration assemblies are designed to handle up to 500 mL of sample liquids for the analysis of particulate or microbiological contamination. (1 per EA)
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    was $254.59 Special Price $222.47
  10. United Scientific™ Filter Paper, Rectangular, Grade 1, 8.5in X 11in
    Manufacturer: United Scientific Supplies
    Superior quality neutral filter paper.  Suitable for medium filtration, very low ash content. (100 per PK )
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    was $50.55 Special Price $38.33
  11. Bottle Top Filters ZapCap
    Manufacturer: GVS North America
    Bottle Top Filters ZapCap (12 per CS )
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    was $765.00 Special Price $613.59
  12. Disc 13mm NC Wht 0.8µ 100/Pk
    Manufacturer: GVS North America
    Disc 13mm NC Wht 0.8µ 100/Pk (100 per PK )
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    was $45.38 Special Price $36.39
  13. Adapter Plugs For Membrane Dispenser
    Manufacturer: GVS North America
    Adapter Plugs For Membrane Dispenser (1 per EA )
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    was $150.96 Special Price $121.09
  14. Heat Treated, ultra low metals, Quartz microfiber, 11.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1150°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Glass microfiber filters offered in this product range are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. These filters offer many advantages in a wide range of analytical applications. The fibers used to manufacture these depth filters are smooth and uniform. This permits their characteristically high flow rates while allowing retention of exceptionally small particles and high load capacity. These characteristics are particularly important in applications involving high concentrations of particulate or gelatinous substances. In choosing the appropriate filter for a specific application, careful consideration should be given to the physical form and concentration of the material to be captured by the filter. (100 per PK )
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    was $542.42 Special Price $495.48
  15. Sterile GF Syringe Filters, 1.00(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    HydroBlokr™ functions via use of proprietarily designed, multi-layered series of membranes placed within an ultrasonically welded device which creates a check-valve effect when wet. The functional membrane within the series immediately reacts in presence of aqueous solution by stopping and blocking further passage1 . The materials create a highly retentive pore structure which helps protect the user environment2 . The extraordinarily high flow rates compared to other simple hydrophobic barrier filters creates a high-flow, less restrictive path for vacuum and positive pressure to pass. Unlike simple hydrophobic barrier filters, once HydroBlokr™ is wetted it halts operation and locks out further usage until replaced. No further aspiration is possible, thus helping to protect your sample3 and making it plainly obvious the filter has become wet and replacement is necessary. (100 per PK )
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    was $261.37 Special Price $208.31
  16. Sterile PES Syringe Filters, 0.45(μm), 13(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    HydroBlokr™ functions via use of proprietarily designed, multi-layered series of membranes placed within an ultrasonically welded device which creates a check-valve effect when wet. The functional membrane within the series immediately reacts in presence of aqueous solution by stopping and blocking further passage1 . The materials create a highly retentive pore structure which helps protect the user environment2 . The extraordinarily high flow rates compared to other simple hydrophobic barrier filters creates a high-flow, less restrictive path for vacuum and positive pressure to pass. Unlike simple hydrophobic barrier filters, once HydroBlokr™ is wetted it halts operation and locks out further usage until replaced. No further aspiration is possible, thus helping to protect your sample3 and making it plainly obvious the filter has become wet and replacement is necessary. (100 per PK )
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    was $320.65 Special Price $255.57
  17. 934-AH Glass Fiber Filter, Diameter 90 mm, Preweighed for Standard Methods TSS or VSS procedure, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 3827-090 Environmental Express (CP) Equivalent: F93490VOL (100 per PK )
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    $250.66
  18. Nonsterile Nylon, 0.45 (µm), 17 (mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    HydroBlokr™ functions via use of proprietarily designed, multi-layered series of membranes placed within an ultrasonically welded device which creates a check-valve effect when wet. The functional membrane within the series immediately reacts in presence of aqueous solution by stopping and blocking further passage1 . The materials create a highly retentive pore structure which helps protect the user environment2 . The extraordinarily high flow rates compared to other simple hydrophobic barrier filters creates a high-flow, less restrictive path for vacuum and positive pressure to pass. Unlike simple hydrophobic barrier filters, once HydroBlokr™ is wetted it halts operation and locks out further usage until replaced. No further aspiration is possible, thus helping to protect your sample3 and making it plainly obvious the filter has become wet and replacement is necessary. (100 per PK )
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    was $87.84 Special Price $69.87
  19. Nonsterile PTFE Syringe Filters, 0.45(μm), 13(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6874-1304 (100 per PK )
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    was $263.82 Special Price $210.26
  20. Quartz microfiber, 7.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-070 (100 per PK )
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    was $243.93 Special Price $216.31
  21. United Scientific™ Replacement Fritted Glass Base With Stopper, 25mm
    Manufacturer: United Scientific Supplies
    Replacement fritted glass base with stopper for Microanalysis Vacuum Filter Holder Set (FHMA25) (1 per EA)
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    was $126.00 Special Price $101.00
  22. Centrifugal Filters, Centrex, 1.5ml, 0.2µ, CA, 250/Pk
    Manufacturer: GVS North America
    GVS centrifuge filters, Centrex™, has various type of membranes and make able the end users to do a larger sample preparation, with a considerable reduction of contamination risk. Thanks to the GVS knowledge in filtratio (250 per PK )
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    was $1,718.29 Special Price $1,378.21
  23. Filter, Disk, PCTE, 0.4µ, Pvpf,47mm, 100/Pk
    Manufacturer: GVS North America
    Filter, Disk, PCTE, 0.4µ, Pvpf,47mm, 100/Pk (100 per PK )
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    was $127.02 Special Price $101.88
  24. Filter, Disk, NC, 5.0µ, 142mm, 25/Pk
    Manufacturer: GVS North America
    Filter, Disk, NC, 5.0µ, 142mm, 25/Pk (25 per PK )
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    was $197.02 Special Price $158.03
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