These erlenmeyer-style flasks feature heavy-wall glass to provide the mechanical strength needed for vacuum filtration.

• Side arms are #2 hose connections that accept standard 1/4” (6mm) I.D. flexible tubing for connection to a vacuum source
• Manufactured from WHEATON 33 low extractable borosilicate glass that conforms to ASTM E 438 Type I, Class A requirements

Connect a second flask between the filtering flask and the vacuum source to prevent entry of the filtrate into the vacuum source.