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. United Scientific™ Replacement Glass Base, 47mm
    Manufacturer: United Scientific Supplies
    Replacement 300ml glass base designed for use with Vacuum Filter Holder Set with Stainless Steel Screen (FHSS47). (1 per EA)
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    was $113.25 Special Price $90.79
  2. United Scientific™ Replacement Support Screen, Stainless, 47mm
    Manufacturer: United Scientific Supplies
    Replacement stainless steel support screen designed for use with Vacuum Filter Holder Set with Stainless Steel Screen (FHSS47). (1 per EA)
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    was $35.70 Special Price $26.03
  3. United Scientific™ Filter Paper, Circular, Grade 1, 15 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $13.60 Special Price $9.53
  4. United Scientific™ Replacement Glass Funnel, 15ml
    Manufacturer: United Scientific Supplies
    Designed for particulate or biological contamination analysis of small volumes using a vacuum filter. Includes a stainless steel screen filter support and No. 5 perforated silicone stopper for easy attachment to a vacuum filtering flask. (1 per EA)
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    was $49.90 Special Price $37.84
  5. United Scientific™ Filter Paper, Circular, Grade 1, 7 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $4.15 Special Price $2.73
  6. United Scientific™ Hand Vacuum Pump, Without Gauge
    Manufacturer: United Scientific Supplies
    This easy-to-operate hand vacuum pump delivers approximately 15ml per squeeze to create a vacuum of 50mm Hg, or air pressure of approximately 2 atm. Pump features a removable cap and an elastic valve to enable quick release without dismantling the pump from the line. This product is recommended for general laboratory use, in applications that do not require high or precise vacuum conditions. (1 per EA )
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    was $37.20 Special Price $27.12
  7. United Scientific™ Vacuum Filter Holder Set With Stainless Steel Screen, 47mm
    Manufacturer: United Scientific Supplies
    Designed for particulate contamination analyses of hydraulic fluids and oils using gravimetric or particulate counting methods. Contents: * Borosilicate glass funnel, 300ml (FHGF300) * Glass funnel base, 47mm (FHBS47) * Anodized aluminum spring clamp, 47mm (FHSC47) * Stainless steel support screen, 47mm (FHSSR47) * Perforated silicone stopper, No. 8 (FHSTS8) Thick depth prefilter: 35mm Membrane prefilter: 47mm Dimensions: 22.9cm tall x 7.6cm in diameter Sterilization method: 30 UV, or autoclave without filter in place (1 per EA)
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    was $286.50 Special Price $250.82
  8. United Scientific™ Filter Paper, Circular, Grade 1, 9 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $6.15 Special Price $4.02
  9. United Scientific™ Filter Paper, Circular, Grade 1, 11 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $8.50 Special Price $5.95
  10. United Scientific™ Vacuum Filtering Flask, 125ml Capacity
    Manufacturer: United Scientific Supplies
    Replacement 125ml vacuum filtering flask designed for use with Microanalysis Vacuum Filter Holder Sets (FHMA25 and FHMS25-S). (1 per EA)
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    was $20.35 Special Price $14.84
  11. United Scientific™ Replacement Gasket, Ptfe, 47mm
    Manufacturer: United Scientific Supplies
    Replacement gasket designed for use with Vacuum Filter Holder Set with Stainless Steel Screen (FHSS47). (1 per EA)
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    was $4.60 Special Price $3.03
  12. United Scientific™ Filter Paper, Circular, Grade 1, 18 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $17.00 Special Price $11.92
  13. United Scientific™ Vacuum Filtering Flask, 1000ml Capacity
    Manufacturer: United Scientific Supplies
    Replacement 1000ml vacuum filtering flask designed for use with Vacuum Filter Holder Set with PTFE Coated Funnel and Base (FHPT47) and Vacuum Filter Holder Set with Fritted Glass Support Base (FHFT47). (1 per EA)
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    was $55.50 Special Price $42.08
  14. United Scientific™ Vacuum Filter Holder Set, 47mm
    Manufacturer: United Scientific Supplies
    Designed for bacteriological analysis of water using 47mm sterile membrane filters. Also applicable for analysis of suspended solids in water using 47mm depth filters. Complete set includes a borosilicate glass funnel and base, anodized aluminum spring clamp, and perforated silicone stopper. (1 per EA)
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    was $244.00 Special Price $213.41
  15. United Scientific™ Replacement Glass Base And Cap, 47mm
    Manufacturer: United Scientific Supplies
    Replacement 47ml base designed for use with All-Glass Vacuum Filter Holder Set (FHAG47). (1 per EA)
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    was $141.50 Special Price $119.74
  16. United Scientific™ Vaccum Filter Holder Set, 47mm
    Manufacturer: United Scientific Supplies
    Designed for particulate or biological contamination analysis of small volumes using a vacuum filter. Includes a stainless steel screen filter support and No. 5 perforated silicone stopper for easy attachment to a vacuum filtering flask. (1 per EA)
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    was $310.00 Special Price $271.46
  17. United Scientific™ Replacement Spring Clamp, 47mm
    Manufacturer: United Scientific Supplies
    Replacement 47mm spring clamp designed for use with: Vacuum Filter Holder Set with Stainless Steel Screen (FHSS47); Vacuum Filter Holder Set with PTFE Coated Funnel and Base (FHPT47); Vacuum Filter Holder Set with Fritted Glass Support Base (FHFT47); and All-Glass Vacuum Filter Holder Set (FHAG47). (1 per EA)
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    was $62.25 Special Price $47.13
  18. United Scientific™ Replacement Glass Funnel, 300ml
    Manufacturer: United Scientific Supplies
    Designed for particulate or biological contamination analysis of small volumes using a vacuum filter. Includes a stainless steel screen filter support and No. 5 perforated silicone stopper for easy attachment to a vacuum filtering flask. (1 per EA)
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    was $56.25 Special Price $42.59
  19. United Scientific™ Microanalysis Vacuum Filter Holder Set, Fritted Glass, 25mm
    Manufacturer: United Scientific Supplies
    Designed for particulate or biological contamination analysis of small volumes using a vacuum filter. Includes a fritted glass filter support and No. 5 perforated silicone stopper for easy attachment to a vacuum filtering flask. (1 per EA)
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    was $251.00 Special Price $219.53
  20. United Scientific™ Replacement Ptfe-Coated Glass Funnel, 300ml
    Manufacturer: United Scientific Supplies
    Replacement 300ml borosilicate glass funnel designed for use with Vacuum Filter Holder Set with PTFE Coated Funnel and Base (FHPT47). (1 per EA)
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    was $91.50 Special Price $73.42
  21. United Scientific™ Replacement Base For 47mm Glass Filter Holder
    Manufacturer: United Scientific Supplies
    Replacement 300ml base designed for use with Vacuum Filter Holder Set with Fritted Glass Support Base (FHFT47). (1 per EA)
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    was $127.00 Special Price $101.69
  22. United Scientific™ Replacement Ptfe-Coated Glass Base, 47mm
    Manufacturer: United Scientific Supplies
    Replacement 300ml PTFE-coated glass base designed for use with Vacuum Filter Holder Set with PTFE Coated Funnel and Base (FHPT47). (1 per EA)
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    was $145.50 Special Price $123.15
  23. United Scientific™ Vacuum Filter Holder Set With Ptfe-Coated Funnel And Base, 47mm
    Manufacturer: United Scientific Supplies
    Designed for particulate or biological contamination analysis of small volumes using a vacuum filter. Includes a stainless steel screen filter support and No. 5 perforated silicone stopper for easy attachment to a vacuum filtering flask. (1 per EA)
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    was $291.00 Special Price $254.44
  24. United Scientific™ Filter Paper, Circular, Grade 1, 12.5 cm Diameter
    Manufacturer: United Scientific Supplies
    The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. (100 per PK )
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    was $10.85 Special Price $7.58
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