Filtration Funnels
Heavy duty filtration funnels assist in collecting solid compounds present in liquids. Poured liquids travel by vacuum suction through fritted discs or perforated plates to flow out the long, angled stems. Common Hirsh or Buchner styles with ribs prevent airlock and make operation faster. The chemical and temperature resistance permits fluted filtration funnels to accommodate harsh materials and repetitive sterilizing procedures. Models vary in capacity, porosity, and filter paper accommodating sizes.
Filter apparatus according to Witt, DURAN®
Supplier: DWK Life Sciences
DURAN®, borosilicate glass 3.3, clear.
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Funnels, with standard ground joint cone
Supplier: witeg Labortechnik
Funnels, made of boroslicate glass, with standard ground joint cone, one side flat.
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Disposable funnel for liquids, LaboPlast® / SteriPlast®
Supplier: BURKLE
Disposable funnel for reliable filling of liquids, ideal for filling bottles and other containers with a narrow filler opening.
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Powder funnels, Quickfit®
Supplier: SciLabware
PYREX®, borosilicate glass, stem with cone.
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Filter funnels according to Hirsch
Supplier: witeg Labortechnik
These fritted disc funnels, made of borosilicate glass, are used in preparative work or in making separations where it is necessary to wash the precipitate and redissolve with chemicals which would attack filter paper.
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Filtration funnels, Büchner type
Supplier: SciLabware
PYREX®, borosilicate glass, with sintered glass disc.
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Funnels with short stem
Supplier: hünersdorff GmbH
These food safe HDPE funnels are acid and chemical resistant and are ideal for use in the laboratory, workshop and household purposes.
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Drum funnels, PP
Supplier: SEMADENI
Funnels, made of PP, for filling containers with large quantities of liquid or powdered substances quickly.



