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Flask Glass Filtering

Filtering Flasks, Borosilicate Glass
Item # 20105
Available Size(s)

1000mL, 2000mL, 250mL, 5000mL, 500mL




Heavy wall borosilicate filtering flask includes a heavy-duty rim and a bolt neck with tubulation. Graduations are printed in durable white enamel.
Manufactured from low-expansion Type 1, Class A Borosilicate 3.3 glass that complies with ASTM E438 Standard Specification for Glasses in Laboratory Apparatus. It is low alkali glass with a typical chemical composition of approximately 81% silica, 13% boric oxide, 4% sodium oxide, and 2% aluminum oxide. It is virtually free of magnesia-lime-zinc group, and contains only traces of heavy metals.

❖ Borosilicate 3.3 glass
❖ Heavy rim
❖ Bolt neck with tubulation

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