DWK Life Sciences 

Flat bottom flasks, DURAN®, narrow neck

Uniform wall thickness distribution makes these beakers ideal for heating applications. Flat base means flasks can be set down without a supporting ring. Flasks with a neck diameter of 65 mm have a reinforced rim.

  • DIN ISO 1773
  • With beaded rim
  • Glass Type I / neutral glass as per USP, EP and JP
  • Autoclavable
With beaded rim:Yes
Standard:DIN ISO 1773
Flat bottom flasks, DURAN®, narrow neck


Flat bottom flasks, DURAN®, narrow neck
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Flat bottom flasks, DURAN®, narrow neck

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Alternate products:
Flat bottom flasks with conical ground joint, DURAN® / Lenz-Laborglas