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 D cut 2.4cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1823-024 Millipore Equivalent: APFD 024 00 Ahlstrom Equivalent: 1410-0240 MFS/Advantec Equivalent: GD12024MM (100 per PK )
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    was $25.00 Special Price $22.83
  2. Quartz microfiber, 15.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-150 MFS/Advantec Equivalent: QR100150MM Sartorius: Q3400--150------G (100 per PK )
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    was $719.00 Special Price $637.68
  3. Quartz microfiber, 15.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-150 MFS/Advantec Equivalent: QR100150MM (100 per PK )
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    was $379.00 Special Price $326.80
  4. Quartz microfiber, 8x10inch sheets, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-865 Pall Equivalent: 7204 (100 per PK )
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    was $743.50 Special Price $641.11
  5. LabExact HandiPrep™ Model B in syringe clarification device, 5ml volume capacity, PP media, medium cloudy suspension to 1micron output, 100/pk
    Manufacturer: I W Tremont
    LabExact® HandiPrep™ Model B in syringe clarification device, 5ml volume capacity, PP 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 $140.29 Special Price $121.45
  6. LabExact HandiPrep™ Model C in syringe clarification device, 5ml volume capacity, cotton media, very cloudy suspension to 2micron output, 100/pk
    Manufacturer: I W Tremont
    LabExact® HandiPrep™ Model C in syringe clarification device, 5ml volume capacity, cotton media, very cloudy suspension to 2µm output, 100/pk; Filtration device shortens sample-prep workflow. Clarify heavily precipitated suspensions. (100 per PK )
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    was $147.64 Special Price $127.73
  7. Sterile PVDF Syringe Filters, 0.22(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6791-1302 Millipore Equivalent: SLGV013SL (100 per PK )
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    was $261.37 Special Price $208.31
  8. Nonsterile PES Syringe Filters, 0.22(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6782-1302 Sartorius: 1776D----------Q (100 per PK )
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    was $138.42 Special Price $110.17
  9. Nonsterile Nylon Syringe Filters, 0.22(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6750-2502 Pall Equivalent: 4436 Millipore Equivalent: SLHNBZ5NZ MFS/Advantec Equivalent: 30NP022AN Sartorius: 17845----------Q Environmental Express (CP) Equivalent: SF020N (100 per PK )
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    was $172.76 Special Price $109.66
  10. Nonsterile syringe filter, 4mm diameter, 0.22micron, 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. Sterile PVDF Syringe Filters, 0.45(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6791-1304 (100 per PK )
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    was $261.37 Special Price $208.31
  12. Sterile PES Syringe Filters, 0.22(μm), 25(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6896-2502 (100 per PK )
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    was $420.23 Special Price $334.95
  13. Grade C cut 3.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: GC5035MM (100 per PK )
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    was $29.40 Special Price $20.81
  14. Sterile PVDF Syringe Filters, 0.22(μm), 25(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 $307.48 Special Price $245.07
  15. Nonsterile syringe filter, 4mm diameter, 0.22micron, Nylon membrane, 200pk, POUCH200
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6789-0402 Pall Equivalent: n/a (200 per PK )
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    $260.52
  16. Nonsterile syringe filter, 4mm diameter, 0.45micron, CA 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
  17. Tri-Layer PP/GF prefilter Nonsterile PTFE Syringe Filters, Diameter 25mm, Porosity 0.22µm, 100 /pack, hydrophobic, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6874-2502 (100 per PK )
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    was $382.70 Special Price $336.56
  18. Non-sterile, LabExact® with H&V Trupor® PES membrane syringe filters, 0.45(μm), 25(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 $194.65 Special Price $138.47
  19. Nonsterile syringe filter, 4mm diameter, 0.45micron, PTFE HYDROPHOBIC membrane, 200pk, POUCH200
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6784-0404 Pall Equivalent: 4472 Ahlstrom Equivalent: 760544 Sartorius: 17820----------K (200 per PK )
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    $260.52
  20. Grade A cut 4.25cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1820-042 Millipore Equivalent: APFA 042 00 Ahlstrom Equivalent: 1110-0425 MFS/Advantec Equivalent: GA5542.5MM (100 per PK )
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    was $32.41 Special Price $23.10
  21. Sterile PTFE 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
  22. Nonsterile MCE Syringe Filters, 0.22(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Millipore Equivalent: SLGS025NB MFS/Advantec Equivalent: 25AS020AN (100 per PK )
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    was $170.00 Special Price $135.27
  23. Grade A-E cut 8x10 inch sheets - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Pall Equivalent: 61638 (100 per PK )
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    was $281.48 Special Price $249.63
  24. Quartz microfiber, 15.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 25/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-150 MFS/Advantec Equivalent: QR100150MM (100 per PK )
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    was $193.45 Special Price $166.82
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