Filtering flasks are used in numerous general laboratory procedures for rapid filtration of liquids. Typical flask design includes a conical shape with a flat bottom, tapered neck, and a sidearm for use in vacuum filtration.

500ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, Karter Scientific (Single)

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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.

Filtering flasks (also known as a vacuum flask, filter flask, or Büchner flask) has heavier walls than a standard Erlenmeyer flask to withstand the effects of vacuum filtration. A side arm with hose barb end accepts flexible tubing for connection to vacuum pump, aspirator, or house vacuum.

Filter flasks are heavy-walled to provide the mechanical strength needed for vacuum filtration. DURAN® filtering flasks are available in two shapes, Erlenmeyer and cylindrical bottles.

Heavy-walled flasks feature a heavy-duty rim and bolt neck ideal for vacuum filtration. Graduations are printed in durable white enamel. United Scientific flasks deliver an unbeatable combination of thermal shock resistance and physical strength.

Apr 8, 2025 · Pyrex® heavy wall filtering flasks capacity 2,000 mL; Synonyms: conical flasks,filtering flask,filtering flasks,flasks erlenmeyer at Sigma-Aldrich

Aug 4, 2015 · A filter flask is an Erlenmeyer flask with a specialized arm on the side. This arm connects to a vacuum pump or aspirator, creating a vacuum and lowering the pressure inside the flask.