Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.

• Dry, deoxygenated and grease-free solvents are maintained in this state for relatively long periods of time
• Quantities of solvent are withdrawn from the flask using either a cannula or a syringe with a proper length needle
• Valve is 0-4 mm and has an plug

Solvent integrity is provided by the KONTES® HI-VAC® valve, which provides access to the flask contents.