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, 2.1cm 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: CG-50 21MM (100 per PK )
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    was $53.24 Special Price $50.48
  2. Grade B cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1821-070 Millipore Equivalent: APFB 070 00 Ahlstrom Equivalent: 1210-0700 Sartorius: FT-3-1102-070 (100 per PK )
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    was $89.78 Special Price $81.97
  3. Grade A cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1820-125 Ahlstrom Equivalent: 1110-1250 MFS/Advantec Equivalent: GA55125MM Sartorius: FT-3-1101-125 (100 per PK )
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    was $123.41 Special Price $88.12
  4. Grade B cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1821-055 Millipore Equivalent: APFB 055 00 Ahlstrom Equivalent: 1210-0550 MFS/Advantec Equivalent: GB14055MM Sartorius: FT-3-1102-055 (100 per PK )
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    was $73.35 Special Price $66.97
  5. Grade A-E cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media, 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 $40.04 Special Price $37.13
  6. Grade F cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1825-042 Millipore Equivalent: APFF 042 00 Ahlstrom Equivalent: 1510-0425 MFS/Advantec Equivalent: GF7542.5MM (100 per PK )
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    was $82.72 Special Price $41.22
  7. Grade F cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1825-070 Millipore Equivalent: APFF 070 00 Ahlstrom Equivalent: 1510-0700 MFS/Advantec Equivalent: GF7570MM Sartorius: FT-3-1105-070 (100 per PK )
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    was $130.97 Special Price $72.48
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. LabExact HandiPrep™ Model D in syringe clarification device, 5ml volume capacity, binderless glass media, medium cloudy suspension to 1micron output, 100/pk
    Manufacturer: I W Tremont
    LabExact® HandiPrep™ Model D in syringe clarification device, 5ml volume capacity, binderless glass media, medium cloudy suspension to 1µm output, 100/pk; Filtration device shortens sample-prep workflow. Clarify heavily precipitated suspensions. (100 per PK )
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    was $177.51 Special Price $153.27
  20. Nonsterile PTFE Syringe Filters, 0.22(μm), 25(mm), Hydrophilic, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Millipore Equivalent: SLLGC25NS MFS/Advantec Equivalent: 25HP020AN Environmental Express (CP) Equivalent: SF020T (100 per PK )
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    was $276.31 Special Price $219.90
  21. Nonsterile PVDF Syringe Filters, 0.22(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6746-2502 Pall Equivalent: 4406 Millipore Equivalent: SLGV025NS (100 per PK )
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    was $184.14 Special Price $146.55
  22. Hydrophobic PTFE membrane, NON-STERILE, 0.80 micron, 25mm diameter, PK100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: T080A025A (100 per PK )
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    was $95.24 Special Price $67.77
  23. Sterile PTFE Syringe Filters, 0.22(μm), 13(mm), Hydrophobic, 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 $242.71 Special Price $208.31
  24. Nonsterile A83 NanoGFSyringe Filters, 0.5μm, 30mm, PK100
    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 )
    Learn More
    was $186.61 Special Price $167.10
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