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    What People Are Saying

    Excellent flask, but mine needed a # 9 stopper
  • Gregory
  • 05/16/2016
  • This flask did everything I wanted, but the neck i.d. was 40 mm, instead of the stated of the stated 35, so the # 8 stoppers I purchased wouldn't fit. I alerted customer service to the problem. They immediately sent me the # 9 stoppers I requested, and said they would look into the diameter as a quality control issue. Overall, I'm perfectly satisfied. [HST adds: We have reviewed and fixed the issue, the #8 stopper is the correct size for what we have in stock.]
    Quality product
  • Jonathan
  • 03/08/2015
  • Great for in vacuo filtration, the perfect companion to the Buchner funnel offered elsewhere on the site. A couple of things to note, you'll need a #8 rubber stopper to go with it, and the barb takes a 1/2" ID vacuum hose, as opposed to the 3/8" ID hose used with the vacuum distillation adaptor HST sells. A short length of 1/2" hose and a 3/8" adaptor to stick on the end of your current setup are a couple of bucks at Home Depot.

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    Filtering Flask, 1000 ml

    Ages 11+

    Item# CE-FLF1000

    $17.60 in_stock

    In Stock

    Order now to ship Monday, 07/31. Express shipping is available.
    Product Overview
    These 1000 ml Home Science Tools filtering flasks are made of high-quality borosilicate glass that can be heated directly in an open flame.

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    QUANTITY 1 - 3 4+
    PRICE $17.60 $15.85
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    • Product Details

      Filtering Flask, 1000 ml

      These 1000 ml Home Science Tools filtering flasks are made of high-quality borosilicate glass that can be heated directly in an open flame. Use a #8 stopper for this thick-wall glass filtering flask with side-tube. A filtering flask is used for vacuum filtration or distillation. The graduations are approximate and not intended for accurate liquid measurement.

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