Filtering Flasks

Filtering Flasks

Use filtering flasks, also known as vacuum flasks, Buchner flasks, suction flasks, Kitasato flasks or side-arm flasks, for rapid filtration of liquids in numerous general laboratory procedures. The typical flask design has a conical shape with a flat bottom, tapered neck, and a sidearm for use in vacuum filtration. The thick walls of the flasks can withstand pressure under vacuum. Flasks, which can also be manufactured from polystyrene, are available in a variety of volumes and socket sizes, as well as graduated or ungraduated formats. Flasks may be used with accessories, such as a Buchner

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Borosilicate Glass (5)
Polypropylene (2)
Autoclavable (2)
Fisherbrand (4)
1 L (1)
1000 mL (3)
250 mL (1)
500 mL (2)
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7 Products
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Autoclavable
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Nalgene™ Polypropylene Vacuum Flask, 1000mLNalgene™ Polypropylene Vacuum Flask, 1000mL
—PolypropyleneAutoclavableCase
Nalgene™ Polypropylene Vacuum Flask, 500mLNalgene™ Polypropylene Vacuum Flask, 500mL
—PolypropyleneAutoclavableCase
Reusable Heavy-Wall Filter FlasksReusable Heavy-Wall Filter Flasks
—Borosilicate Glass—Pack
Reusable Heavy-Wall Filter FlasksReusable Heavy-Wall Filter Flasks
—Borosilicate Glass—Pack
Reusable Heavy-Wall Filter FlasksReusable Heavy-Wall Filter Flasks
—Borosilicate Glass—Pack
Reusable Heavy-Wall Filter FlasksReusable Heavy-Wall Filter Flasks
—Borosilicate Glass—Pack
PYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm TubulationPYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm Tubulation
—Borosilicate Glass—Case
Nalgene™ Polypropylene Vacuum Flask, 1000mL 
Replace glass flasks with the Thermo Scientific™ Nalgene™ Polypropylene Vacuum Flask, molded in one piece for full vacuum service with angled tubulation to prevent tipping. This shatter-proof, autoclavable flask can withstand vacuum to 30″ Hg making it a valuble contribution to your lab safety...
Nalgene™ Polypropylene Vacuum Flask, 500mL Thermo Fisher Scientific
Replace glass flasks with the Thermo Scientific™ Nalgene™ Polypropylene Vacuum Flask, molded in one piece for full vacuum service with angled tubulation to prevent tipping. This shatter-proof, autoclavable flask can withstand vacuum to 30 in.
Reusable Heavy-Wall Filter Flasks Fisherbrand
With heavier walls than standard Erlenmeyer flasks
Reusable Heavy-Wall Filter Flasks Fisherbrand
With heavier walls than standard Erlenmeyer flasks
Reusable Heavy-Wall Filter Flasks Fisherbrand
With heavier walls than standard Erlenmeyer flasks
Reusable Heavy-Wall Filter Flasks Fisherbrand
With heavier walls than standard Erlenmeyer flasks
PYREXPLUS™ Coated Heavy Wall Filtering Flasks with Sidearm Tubulation 
Pyrex™ borosilicate glass with PVC coating reduces chance of breakage