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LABORATORY FUNNELS FOR FILTRATION AND TRANSFER

Funnels channel liquids and powders into narrow vessels while supporting filtration and separation workflows. Conical geometry directs flow, while stems regulate discharge rate. Filter media or vacuum pressure enable solid–liquid separation. These mechanisms control flow efficiency, particle retention, and transfer accuracy.
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Funnels

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  1. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 150 mL - 140-4045
    $884.03
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  2. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 100 mL - 145-0020
    $345.44
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  3. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 100 mL - 145-0045
    $340.33
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  5. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 250 mL - 145-2020
    $385.29
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  6. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 250 mL - 145-2045
    $385.29
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  7. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 100 mL - 147-0045
    $363.83
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  8. Nalgene Single Use Analytical Filter Funnels
    Thermo Scientific Nalgene Single Use Analytical Filter Funnels - 250 mL - 147-2045
    $393.47
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  9. Nalgene Polypropylene Analytical Funnels
    Thermo Scientific Nalgene Polypropylene Analytical Funnels - 10 mL - 4250-0035
    $157.53
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  10. Nalgene Polypropylene Analytical Funnels
    Thermo Scientific Nalgene Polypropylene Analytical Funnels - 41 mL - 4250-0055
    $171.33
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  11. Nalgene Polypropylene Analytical Funnels
    Thermo Scientific Nalgene Polypropylene Analytical Funnels - 64 mL - 4250-0065
    $203.00
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  12. Nalgene Polypropylene Analytical Funnels
    Thermo Scientific Nalgene Polypropylene Analytical Funnels - 114 mL - 4250-0075
    $287.44
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  14. Nalgene Polypropylene Analytical Funnels
    Thermo Scientific Nalgene Polypropylene Analytical Funnels - 254 mL - 4250-0100
    $272.83
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  15. Nalgene Polypropylene Analytical Funnels
    Thermo Scientific Nalgene Polypropylene Analytical Funnels - 976 mL - 4250-0160
    $331.30
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  16. Nalgene Polypropylene Powder Funnels
    Thermo Scientific Nalgene Polypropylene Powder Funnels - 68 mL - 4252-0065
    $197.32
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  17. Nalgene Polypropylene Powder Funnels
    Thermo Scientific Nalgene Polypropylene Powder Funnels - 115 mL - 4252-0080
    $230.61
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  18. Nalgene Polypropylene Powder Funnels
    Thermo Scientific Nalgene Polypropylene Powder Funnels - 243 mL - 4252-0100
    $197.32
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  19. Nalgene Polypropylene Powder Funnels
    Thermo Scientific Nalgene Polypropylene Powder Funnels - 716 mL - 4252-0150
    $248.47
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  20. Nalgene Utility Funnels
    Thermo Scientific Nalgene Utility Funnels - 62 mL - 4256-0234
    $1,448.24
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  21. Nalgene Utility Funnels
    Thermo Scientific Nalgene Utility Funnels - 270 mL - 4256-0414
    $888.17
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  22. Nalgene Utility Funnels
    Thermo Scientific Nalgene Utility Funnels - 1059 mL - 4256-0638
    $1,557.61
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  23. Nalgene Heavy-Duty LDPE Funnels
    Thermo Scientific Nalgene Heavy-Duty LDPE Funnels - 254 mL - 4260-0040
    $285.77
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  24. Nalgene Heavy-Duty LDPE Funnels
    Thermo Scientific Nalgene Heavy-Duty LDPE Funnels - 777 mL - 4260-0060
    $426.01
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  25. Nalgene Heavy-Duty LDPE Funnels
    Thermo Scientific Nalgene Heavy-Duty LDPE Funnels - 3684 mL - 4260-0100
    $232.85
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  26. Nalgene Large HDPE Funnels
    Thermo Scientific Nalgene Large HDPE Funnels - 1.9 L - 4262-0080
    $195.81
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Frequently Asked Questions

How do you choose the right funnel size and type?
Selection depends on the volume of liquid, container opening size, and whether filtration is required. Larger funnels are suitable for higher volumes, while smaller funnels provide better control for precise transfers. The type of funnel should match the application, such as filtration or simple pouring.
What materials are commonly used for laboratory funnels?
Funnels are typically made from borosilicate glass or plastic materials such as polypropylene. Glass funnels offer high chemical resistance and temperature tolerance, while plastic funnels provide durability and resistance to breakage. Material selection depends on the application and handling conditions.
Can funnels be used for vacuum filtration setups?
Yes, specialized funnels such as Büchner or filter funnels are designed for vacuum filtration. These funnels are used with vacuum flasks and filtration systems to accelerate liquid flow and improve separation. Standard funnels are not suitable for vacuum applications.
How should laboratory funnels be cleaned and maintained?
Funnels should be cleaned with appropriate laboratory detergents and rinsed thoroughly to remove residues. For applications requiring sterility, additional cleaning or sterilization may be necessary. Regular inspection for cracks or damage ensures reliable performance and safe use.
What factors affect filtration efficiency when using funnels?
Filtration efficiency depends on factors such as filter media type, pore size, funnel design, and flow rate. Proper fitting of filter paper and consistent pouring technique also influence results. Selecting appropriate materials and setup ensures effective separation and reproducibility.
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