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 TSS cut to 8 x 10 inch sheets - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Pall Equivalent: 61638 Environmental Express (CP) Equivalent: FG85150MM (100 per PK )
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    was $234.75 Special Price $214.43
  2. Sterile PTFE Syringe Filters, 0.22(μm), 25(mm), Hydrophilic, 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 $405.51 Special Price $323.20
  3. Nonsterile MultiDensity Syringe Filters, 1.0μm, 25mm, 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 )
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    was $214.66 Special Price $191.63
  4. Sterile PP 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
  5. 934-AH Glass fiber filter, Diameter 47 mm, prewashed & dried, not tared, TSS or VSS Procedure, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 2827-047 Environmental Express (CP) Equivalent: F92447VOL (100 per PK )
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    $127.14
  6. Grade VSS® cut 8 x 10 inch sheets - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-866 (100 per PK )
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    was $234.75 Special Price $208.17
  7. Hydrophilic Nylon membrane, NON-STERILE, 0.45 micron, 47mm diameter, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 7404-004 Pall Equivalent: 66608 Millipore Equivalent: HNWP04700 Ahlstrom Equivalent: 760181 MFS/Advantec Equivalent: N045A047A Environmental Express (CP) Equivalent: F47045N (100 per PK )
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    was $81.24 Special Price $57.79
  8. Sterile Nylon Syringe Filters, 0.22(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6786-1302 (100 per PK )
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    was $218.47 Special Price $187.49
  9. Quartz microfiber, 8.26cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-082 Pall Equivalent: 7205 MFS/Advantec Equivalent: QR10082MM (100 per PK )
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    was $154.49 Special Price $133.22
  10. Grade A-E cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Pall Equivalent: 61665 (100 per PK )
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    was $61.17 Special Price $56.73
  11. Quartz microfiber, 3.7cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-037 Pall Equivalent: 7201 MFS/Advantec Equivalent: QR10037MM Sartorius: Q3400--37------G (100 per PK )
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    was $112.96 Special Price $100.16
  12. Nonsterile PES Syringe Filters, 0.45(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6781-2504 Pall Equivalent: 4508 Environmental Express (CP) Equivalent: SF045E (100 per PK )
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    was $230.85 Special Price $146.55
  13. Sterile Nylon 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 $218.47 Special Price $187.49
  14. Nonsterile PTFE Syringe Filters, 0.45(μm), 25(mm), Hydrophilic, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Millipore Equivalent: SLCR025NS MFS/Advantec Equivalent: 25HP050AN Environmental Express (CP) Equivalent: SF045T (100 per PK )
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    was $276.31 Special Price $219.90
  15. Grade TSS cut to 8.26cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Environmental Express (CP) Equivalent: FG85070MM (100 per PK )
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    was $41.46 Special Price $37.86
  16. Hydrophilic Nylon membrane, NON-STERILE, 0.45 micron, 90mm diameter, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 7404-009 Pall Equivalent: 66609 MFS/Advantec Equivalent: N045A090C Environmental Express (CP) Equivalent: F90045N (100 per PK )
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    was $218.52 Special Price $155.43
  17. Nonsterile Nylon Syringe Filters, 0.45(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6750-2504 Pall Equivalent: 4438 Millipore Equivalent: SLHNDZ5NK MFS/Advantec Equivalent: 30NP045AN Sartorius: 17846---------Q Environmental Express (CP) Equivalent: SF045N (100 per PK )
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    was $172.76 Special Price $109.66
  18. Sterile PTFE Syringe Filters, 0.45(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 )
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    was $420.23 Special Price $334.95
  19. Grade TSS cut to 2.5cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Pall Equivalent: 65475 Ahlstrom Equivalent: 1610-0250 Sartorius: FT-3-1106-025 Environmental Express (CP) Equivalent: FG85024MM (100 per PK )
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    was $14.49 Special Price $13.64
  20. Hydrophilic Mixed Cellulose Esters, 0.45 micron, sterile, gridded, 47mm diameter, pack of 200, PK200
    Manufacturer: I W Tremont
    Pall Equivalent: 66278 MFS/Advantec Equivalent: A045H047Y (200 per PK )
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    was $137.66 Special Price $109.61
  21. Quartz microfiber, 2.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-025 Pall Equivalent: 7200 MFS/Advantec Equivalent: QR10025MM Sartorius: Q3400--25------G (100 per PK )
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    was $61.60 Special Price $54.64
  22. Non-sterile, LabExact® with H&V Trupor® Nylon 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 $171.43 Special Price $118.80
  23. Nonsterile GF Syringe Filters, 1.00(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Millipore Equivalent: SLAP02550 (100 per PK )
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    was $170.99 Special Price $146.55
  24. Sterile PP Syringe Filters, 0.22(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
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