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. Sterile PTFE Syringe Filters, 0.45(μm), 13(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 $305.93 Special Price $243.82
  2. Grade C cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1822-037 Pall Equivalent: 66214 Millipore Equivalent: APFC 037 00 MFS/Advantec Equivalent: GC5037MM (100 per PK )
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    was $29.40 Special Price $20.81
  3. Grade E cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: GC5037MM (100 per PK )
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    was $21.07 Special Price $20.33
  4. Sterile PES Syringe Filters, 0.45(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6780-1304 Pall Equivalent: 4604 (100 per PK )
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    was $261.37 Special Price $208.31
  5. Nonsterile CA Syringe Filters, 0.45(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6771-1304 MFS/Advantec Equivalent: 13CP045AN (100 per PK )
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    was $138.42 Special Price $110.17
  6. Nonsterile CA Syringe Filters, 0.45(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: 25CS045AN Environmental Express (CP) Equivalent: SF045CA (100 per PK )
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    was $184.14 Special Price $146.55
  7. LabExact Trupor Naturally hydrophilic fast flow Nylon membrane, 0.20micron, 47mm 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 $180.82 Special Price $128.63
  8. LabExact Trupor Naturally hydrophilic fast flow Nylon 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 $121.93 Special Price $86.70
  9. LabExact Trupor Naturally hydrophilic fast flow Nylon membrane, 0.45micron, 47mm 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 $180.82 Special Price $128.63
  10. LabExact Trupor Naturally hydrophilic fast flow Nylon membrane, 0.45micron, 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
  11. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone membrane, 0.20micron, 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
  12. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone membrane, 0.20micron, 47mm 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 $176.13 Special Price $125.24
  13. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone 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 $400.80 Special Price $285.12
  14. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone membrane, 0.45micron, 47mm 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 $176.13 Special Price $125.24
  15. LabExact Trupor Naturally hydrophilic fast flow polyethersulfone membrane, 0.45micron, 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 $400.80 Special Price $285.12
  16. LabExact HandiPrep™ Model E in syringe clarification device, 5ml volume capacity, glass media organic binder, medium cloudy suspension to 2micron output, 100/pk
    Manufacturer: I W Tremont
    LabExact® HandiPrep™ Model E in syringe clarification device, 5ml volume capacity, glass media organic binder, medium 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 $153.18 Special Price $132.46
  17. Sterile MCE Syringe Filters, 0.45(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: 25AS045AS (100 per PK )
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    was $307.48 Special Price $245.07
  18. Nonsterile CA Syringe Filters, 0.22(μm), 25(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    MFS/Advantec Equivalent: 25CS020AN (100 per PK )
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    was $184.14 Special Price $146.55
  19. Grade TSS cut to 4.25cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1610-0425 Environmental Express (CP) Equivalent: FG85037MM (100 per PK )
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    was $19.20 Special Price $18.05
  20. Grade VSS® cut 11.0cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-110 Ahlstrom Equivalent: 1690-1100 MFS/Advantec Equivalent: GC50110MM Sartorius: FT-3-01147-110 (100 per PK )
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    was $95.21 Special Price $86.96
  21. Nonsterile 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 $138.42 Special Price $110.17
  22. Grade VSS® cut 3.5cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-035 MFS/Advantec Equivalent: GC5035MM (100 per PK )
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    was $21.58 Special Price $19.10
  23. Heat Treated, ultra low metals, Quartz microfiber, 4.25cm diameter, high purity (SiO2) microfiber filters , binderless, 1150°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Environmental Express (CP) Equivalent: FQ037MM (100 per PK )
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    was $148.63 Special Price $135.78
  24. NanoGF™ Binderless Grade A-83 glass fiber filter media, 0.5micron retention, 11.0cm 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 110MM (100 per PK )
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    was $171.87 Special Price $163.01
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