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. Grade VSS® cut 10.20cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, 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 $97.89 Special Price $86.80
  2. Tri-Layer PP/GF prefilter Nonsterile PTFE Syringe Filters, Diameter 25mm, Porosity 0.45µm, 100 /pack, hydrophobic, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6874-2504 (100 per PK )
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    was $382.70 Special Price $336.56
  3. Quartz microfiber, 9.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-090 Pall Equivalent: 7203 MFS/Advantec Equivalent: QR10090MM Sartorius: Q3400--90------G (100 per PK )
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    was $326.10 Special Price $289.20
  4. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone membrane, 0.45micron, 25mm diameter, pack of 100
    Manufacturer: I W Tremont
    Unlike traditional polymeric cast film membranes, H&V Trupor® utilizes nanoscale fibers in a composite design to achieve precisely regulated porosities. This innovative design yields best in class performance. No adhesives are utilized which significantly reduce trace extractables making it an ideal matrix for analytical separation (100 per PK )
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    was $107.30 Special Price $76.32
  5. Nonsterile PTFE, 0.22 (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 $163.91 Special Price $130.43
  6. Nonsterile PTFE, 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 $163.91 Special Price $130.43
  7. Nonsterile Nylon Syringe Filters, 0.45(μm), 13(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6870-1304 (100 per PK )
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    was $263.82 Special Price $210.26
  8. Sterile PVDF Syringe Filters, 0.22(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
  9. Nonsterile PVDF, 0.22 (µm), 30 (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 $230.87 Special Price $183.74
  10. Nonsterile syringe filter, 4mm diameter, 0.45micron, PTFE HYDROPHILIC membrane, 200pk, POUCH200
    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. (200 per PK )
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    $260.52
  11. LabExact Trupor Naturally hydrophilic fast flow Nylon membrane, 0.20micron, 90mm diameter, pack of 100
    Manufacturer: I W Tremont
    Unlike traditional polymeric cast film membranes, H&V Trupor® utilizes nanoscale fibers in a composite design to achieve precisely regulated porosities. This innovative design yields best in class performance. No adhesives are utilized which significantly reduce trace extractables making it an ideal matrix for analytical separation (100 per PK )
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    was $416.39 Special Price $296.11
  12. LabExact Trupor Naturally hydrophilic fast flow Nylon membrane, 0.20micron, 142mm diameter, pack of 25
    Manufacturer: I W Tremont
    Unlike traditional polymeric cast film membranes, H&V Trupor® utilizes nanoscale fibers in a composite design to achieve precisely regulated porosities. This innovative design yields best in class performance. No adhesives are utilized which significantly reduce trace extractables making it an ideal matrix for analytical separation (100 per PK )
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    was $227.39 Special Price $161.76
  13. LabExact Trupor Naturally hydrophilic fast flow Nylon membrane, 0.45micron, 142mm diameter, pack of 25
    Manufacturer: I W Tremont
    Unlike traditional polymeric cast film membranes, H&V Trupor® utilizes nanoscale fibers in a composite design to achieve precisely regulated porosities. This innovative design yields best in class performance. No adhesives are utilized which significantly reduce trace extractables making it an ideal matrix for analytical separation (100 per PK )
    Learn More
    was $227.39 Special Price $161.76
  14. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone membrane, 0.45micron, 142mm diameter, pack of 25
    Manufacturer: I W Tremont
    Unlike traditional polymeric cast film membranes, H&V Trupor® utilizes nanoscale fibers in a composite design to achieve precisely regulated porosities. This innovative design yields best in class performance. No adhesives are utilized which significantly reduce trace extractables making it an ideal matrix for analytical separation (100 per PK )
    Learn More
    was $216.77 Special Price $154.61
  15. Sterile MCE Syringe Filters, 0.22(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: 25AS020AS (100 per PK )
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    was $307.48 Special Price $245.07
  16. Nonsterile PES Syringe Filters, 0.45(μm), 25(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6876-2504 Environmental Express (CP) Equivalent: SF145E (100 per PK )
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    was $329.65 Special Price $262.75
  17. Heat Treated, ultra low metals, Quartz microfiber, 5.5cm 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 $200.89 Special Price $183.52
  18. Grade E cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1610-0425 MFS/Advantec Equivalent: GC5042.5MM (100 per PK )
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    was $23.05 Special Price $22.23
  19. Sterile MCE 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 )
    Learn More
    was $261.37 Special Price $208.31
  20. Grade D cut 11.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1410-1100 Sartorius: FT-3-1104-110 (100 per PK )
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    was $117.69 Special Price $107.51
  21. Sterile PTFE Syringe Filters, 0.22(μm), 25(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 )
    Learn More
    was $420.23 Special Price $334.95
  22. Heat Treated, ultra low metals, Quartz microfiber, 9.0cm 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 )
    Learn More
    was $425.23 Special Price $388.43
  23. Nonsterile PVDF Syringe Filters, 0.45(μm), 13(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6872-1304 (100 per PK )
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    was $263.82 Special Price $210.26
  24. Grade A-E cut 12.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Pall Equivalent: 61655 (100 per PK )
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    was $130.87 Special Price $121.34
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