With a side hole of 12.5mm O.D. designed to accept flexible tubing (not included), the Corning Pyrex filter flask, no. 5341-250, has an Erlenmeyer shape with heavy wall and narrow mouth opening. This flask is graduated at 25mL intervals.

Condition: Clean, previously-owned, used. Sold "as is" without warranty expressed or implied. Buyer is responsible for determining the suitability of this product for their application.