Entonnoirs filtrants
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.
Economy Short Stem Funnels, Hutzler
Funnels are made of durable plastic. Funnels of top inner diameter 70-108 are polypropylene and autoclavable. Funnels with top inner diameter of 127 and 165 are polyethylene and not autoclavable.
The 165 mm size has a wide stem for quick transfers.
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Economy Polypropylene Funnels, Maryland Plastics
Various sizes. Packages of 100.
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Large Utility Funnels, Hutzler
These large utility funnels will withstand temperatures up to 250°F (121°C).
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60° Polypropylene Standard Stem Funnels, United Scientific Supplies
These clear funnels have long stems, smooth walls, and external ribs to prevent air lock.
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Glass Buret Funnell, Montclare Scientific
For filling burets. Diameter: 35 mm; total length: 60 mm; outside diameter of stem: 6 mm.
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Funnel Sets
Each set includes three funnels of different sizes. Small funnels are made of polypropylene; large funnels are made of polyethylene. Sizes in small funnel set: 60 mm top dia. x 20 mm stem, 80 mm top dia. x 22 mm stem, 110 mm top dia. x 36 mm stem. Sizes in large set: 127 mm top dia. x 45 mm stem, 160 mm top dia. x 50 mm stem, 200 mm top dia. x 60 mm stem.
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Utility Funnels, Set of 3, United Scientific
Useful for adding powder chemical to reaction vessels.