Product Features

  • Capacity: 250 ml / 500ml Hemispherical.

  • 250ml: Interior Depth: 90mm, Interior Diameter: 94mm.

  • 500ml: Interior Depth: 90mm, Interior Diameter: 124mm.

  • Made of silvered Borosilicate glass with vacuum pumped and aluminum base.

  • Could be used for liquid Nitrogen.

  • StonyLab ensures high quality products and premium customer service. If received damaged, please contact us immediately. We will solve it until satisfied.


Product Options

  • 250ml: XL-815672

  • 500ml:XL-815702

Dewar Flask, Hemispherical Borosilicate Glass Dewar Flask -250ml / 500ml

SKU: XL-825672
  • Processing Time

    Usually Ship in 5 - 7 Business Days. Shipping may take longer than expected during COVID-19.

Customer questions & answers


kathie Morris

A lil expensive and the one had a deformed stem tip.

Brian Scott Sheldon

Very durable glassware. I ordered another set of 120mm funnels. I will use Stonylab glassware from now on.


the item is what it was described and works well for my purpose

John R Van H ouden

Top notch for what am using them for

Jessica Linder

Very nice glass work very well packagd I haven't used it yet planning to use for precious metal recovery not sure about the white stone or if I got the wrong piece ?? looks great



120 Lake Ave S Suite 22
Nesconset, New York 11767


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