DURAN® Round Bottom Flask, Narrow Neck, Beaded Rim, Unbranded With No Markings, 1/Case

• Complies with the dimensional requirements of ISO 1773

• Manufactured from 3.3 expansion borosilicate glass complying with ISO 3585 (ASTM E-438 Type 1 Class A)

• These flasks are supplied completely blank with no branding or other printing

• Suitable for further processing into finished flasks by glass manipulators

• The 10Litre flask has a tooled neck

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