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 2.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1823-025 Pall Equivalent: 66220 Millipore Equivalent: APFD 024 00 Ahlstrom Equivalent: 1410-0250 Sartorius: FT-3-1104-025 (100 per PK )
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    was $25.00 Special Price $22.83
  2. Grade A 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 $21.58 Special Price $19.68
  3. Sterile GF Syringe Filters, 0.70(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 $261.37 Special Price $208.31
  4. Nonsterile GF Syringe Filters, 0.70(μm), 13(mm), 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6825-1307 (100 per PK )
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    was $138.42 Special Price $110.17
  5. Hydrophilic Nylon membrane, NON-STERILE, 0.45 micron, 142mm diameter, PK25
    Manufacturer: I W Tremont
    Pall Equivalent: 66610 MFS/Advantec Equivalent: N045A142C (25 per PK )
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    was $135.89 Special Price $96.64
  6. Sterile PES 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
  7. Grade F cut 3.7cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1825-037 Millipore Equivalent: APFF 037 00 MFS/Advantec Equivalent: GF7537MM (100 per PK )
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    was $72.19 Special Price $35.96
  8. Grade E cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1610-1500 MFS/Advantec Equivalent: GC50150MM (100 per PK )
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    was $106.14 Special Price $102.34
  9. Grade TSS cut to 3.7cm diameter - 100/pk Binderless glass microfiber for determination of total suspended solids, PK100
    Manufacturer: I W Tremont
    Pall Equivalent: 61652 Environmental Express (CP) Equivalent: FG85035MM (100 per PK )
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    was $17.53 Special Price $16.51
  10. Hydrophilic Mixed Cellulose Esters, NON-STERILE, 0.80 micron, 47mm diameter, pack of 100, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 10400912 Pall Equivalent: 64679 MFS/Advantec Equivalent: A080A047A Sartorius: 11304--47------N Environmental Express (CP) Equivalent: F470800 (100 per PK )
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    was $67.39 Special Price $56.97
  11. 934-AH ® cut 5.5cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-055 Millipore Equivalent: AP40 055 00 Ahlstrom Equivalent: 1610-0550 MFS/Advantec Equivalent: GC5055MM Sartorius: FT-3-01147-055 (100 per PK )
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    was $70.81 Special Price $65.54
  12. Hydrophilic Mixed Cellulose Esters, 0.45 micron, sterile, gridded, 47mm diameter (600 case) 3 x 200 packs, SLEEVE600
    Manufacturer: I W Tremont
    Pall Equivalent: 66068 Millipore Equivalent: HAWG04706 (600 per PK )
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    $305.91
  13. Grade D cut 15.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1410-1500 Sartorius: FT-3-1104-150 (100 per PK )
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    was $258.76 Special Price $236.36
  14. 934-AH Glass Fiber Filter, Diameter 47 mm, Preweighed for Standard Methods TSS or VSS procedure, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 3827-047 Environmental Express (CP) Equivalent: F93447VOL (100 per PK )
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    $159.69
  15. Hydrophilic Mixed Cellulose Esters, NON-STERILE, 0.22 micron, 25mm diameter, pack of 100, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 10401706 Millipore Equivalent: GSWP02500 MFS/Advantec Equivalent: A020A025A Sartorius: 11327--25------N (100 per PK )
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    was $51.65 Special Price $43.65
  16. Sterile PVDF Syringe Filters, 0.45(μm), 25(mm), GF prefilter, 100 pack, POUCH100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 6900-2504 (100 per PK )
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    was $420.23 Special Price $334.95
  17. 934-AH ® cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-090 Millipore Equivalent: AP40 090 00 Ahlstrom Equivalent: 1610-0900 MFS/Advantec Equivalent: GC5090MM Sartorius: FT-3-01147-090 (100 per PK )
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    was $148.69 Special Price $112.79
  18. Grade VSS® cut 2.1cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-021 Millipore Equivalent: AP40 021 00 Ahlstrom Equivalent: 1690-0210 MFS/Advantec Equivalent: GC5021MM (100 per PK )
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    was $17.08 Special Price $15.12
  19. Grade C cut 2.1cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1822-021 Millipore Equivalent: APFC 021 00 Ahlstrom Equivalent: 1310-0210 MFS/Advantec Equivalent: GC5021MM (100 per PK )
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    was $27.11 Special Price $19.16
  20. Grade B cut 9.0cm diameter - 100/pk Binderless glass microfiber filter media, PK100
    Manufacturer: I W Tremont
    Ahlstrom Equivalent: 1210-0900 MFS/Advantec Equivalent: GB14090MM Sartorius: FT-3-1102-090 (100 per PK )
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    was $107.17 Special Price $97.87
  21. Heat Treated, ultra low metals, Quartz microfiber, 5.0cm diameter, high purity (SiO2) microfiber filters , binderless, 1150°C+ temperature - 100/pk, PK100
    Manufacturer: I W Tremont
    Environmental Express (CP) Equivalent: FQ047MM550 (100 per PK )
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    was $184.14 Special Price $168.18
  22. Hydrophilic Nylon membrane, NON-STERILE, 0.22 micron, 90mm diameter, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 7402-009 Pall Equivalent: 66603 MFS/Advantec Equivalent: N022A090C (100 per PK )
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    was $218.52 Special Price $155.43
  23. Grade VSS® cut 3.2cm diameter - 100/pk Binderless glass microfiber, high heat up to 550°C for volatile suspended solids, PK100
    Manufacturer: I W Tremont
    Cytiva/Whatman Equivalent: 1827-032 MFS/Advantec Equivalent: GC5032MM (100 per PK )
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    was $21.58 Special Price $19.10
  24. Nonsterile A83 NanoGFSyringe Filters, 0.5μm, 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 $169.43 Special Price $151.77
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