Volumetric Flask, 500ml - Class A - 19/26 Polyethylene Stopper, Borosilicate Glass - Blue Graduation, Tolerance ±0.250 - Eisco Labs

• The neck of the flask is 0.88" outside diameter. The base diameter of the flask is 4" and the overall height is 10.5". Please note: these are hand blown with the capacity in mind and overall dimensions can vary slightly.
• Hand blown, Class A premium borosilicate 3.3 glass.
• The stopper is socket size 19/26, made of polyethylene, and is acid proof and autoclavable.
• Designed to measure and store liquids in the laboratory, but can be used in the home as well -- or even in a set for "potions".
• Top rack dishwasher safe and autoclavable.

Premium borosilicate volumetric Class A flasks with acid proof polyethylene stoppers. Eisco glassware is designed to be used in labs but is often used in homes or garages as well.

NOTE: Polyethylene stoppers cannot be autoclaved. They have a temperature compatibility range of -40°C to +80°C. Remove stoppers before autoclaving the glass flask body.