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. Heat Treated, ultra low metals, Quartz microfiber, 3.2cm 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 $108.35 Special Price $98.96
  2. Sterile PTFE Syringe Filters, 0.22(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
  3. Nonsterile Nylon, 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 $87.84 Special Price $69.87
  4. Nonsterile Nylon Syringe Filters, 0.22(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6789-1302 Pall Equivalent: 4427 Millipore Equivalent: SLGN013NK MFS/Advantec Equivalent: 13NP022AN Sartorius: 1776B----------Q Environmental Express (CP) Equivalent: SF122N (100 per PK )
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    was $114.72 Special Price $65.54
  5. Nonsterile PTFE Syringe Filters, 0.45(μm), 13(mm), Hydrophilic, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Millipore Equivalent: SLCR013NL MFS/Advantec Equivalent: 13HP050AN (100 per PK )
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    was $192.37 Special Price $153.08
  6. Grade A cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1820-070 Millipore Equivalent: APFA 070 00 Ahlstrom Equivalent: 1110-0700 MFS/Advantec Equivalent: GA5570MM Sartorius: FT-3-1101-070 (100 per PK )
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    was $37.16 Special Price $35.82
  7. Sterile GF Syringe Filters, 1.00(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
  8. Grade TSS cut to 3.2cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Environmental Express (CP) Equivalent: FG85025MM (100 per PK )
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    was $17.04 Special Price $16.01
  9. Grade A cut 2.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1820-025 Millipore Equivalent: APFA 025 00 Ahlstrom Equivalent: 1110-0250 MFS/Advantec Equivalent: GA5525MM Sartorius: FT-3-1101-025 (100 per PK )
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    was $21.58 Special Price $19.68
  10. Quartz microfiber, 9.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°C+ temperature - 50/pk, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1851-090 Pall Equivalent: 7203 MFS/Advantec Equivalent: QR10090MM (100 per PK )
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    was $173.01 Special Price $149.14
  11. Grade TSS cut to 2.4cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1610-0240 Environmental Express (CP) Equivalent: FG85021MM (100 per PK )
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    was $14.49 Special Price $13.64
  12. Grade B cut 3.5cm 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 $44.22 Special Price $40.35
  13. Quartz microfiber, 12.5cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°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 $555.70 Special Price $492.82
  14. Grade E sheets 8x10 inch - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1610-0810 (100 per PK )
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    was $310.44 Special Price $283.56
  15. Grade D cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1823-021 Millipore Equivalent: APFD 021 00 Ahlstrom Equivalent: 1410-0210 (100 per PK )
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    was $25.00 Special Price $22.83
  16. Grade A-E cut 2.4cm 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 $23.86 Special Price $21.15
  17. Hydrophilic Mixed Cellulose Esters, 0.45 micron, sterile, gridded, 47mm diameter, pack of 100, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 10407970 Pall Equivalent: 66068 Millipore Equivalent: HAWG04700 MFS/Advantec Equivalent: A045H047A Environmental Express (CP) Equivalent: A045H047A (100 per PK )
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    was $69.42 Special Price $56.07
  18. Grade VSS® cut 2.5cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-025 Millipore Equivalent: AP40 025 00 Ahlstrom Equivalent: 1690-0250 MFS/Advantec Equivalent: GC5025MM (100 per PK )
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    was $18.18 Special Price $16.12
  19. Nonsterile PTFE Syringe Filters, 0.22(μm), 25(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6874-2502 Environmental Express (CP) Equivalent: SF120T (100 per PK )
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    was $329.65 Special Price $262.75
  20. Heat Treated, ultra low metals, Quartz microfiber, 8.26cm 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 $385.06 Special Price $351.74
  21. 934-AH ® cut 7.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-070 Millipore Equivalent: AP40 070 00 Ahlstrom Equivalent: 1610-0700 MFS/Advantec Equivalent: GC5070MM Sartorius: FT-3-01147-070 (100 per PK )
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    was $89.23 Special Price $86.28
  22. Hydrophilic Nylon membrane, NON-STERILE, 0.45 micron, 25mm diameter, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 7404-002 Pall Equivalent: 66607 Millipore Equivalent: HNWP02500 MFS/Advantec Equivalent: N045A025A (100 per PK )
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    was $64.44 Special Price $45.83
  23. Quartz microfiber, 2.4cm diameter, high purity (SiO2) microfiber filters , binderless, 1000°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 $59.03 Special Price $52.34
  24. NanoGF™ Binderless Grade A-83 glass fiber filter media, 0.5micron retention, 5.5cm 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 55MM (100 per PK )
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    was $119.15 Special Price $113.01
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