Filter Flask - Duran® - Shop Vacuum Filtration [Price Match]
A filter flask (sometimes called a Büchner or vacuum flask, suction flask, or even side-arm flask) is a piece of laboratory glassware with an attached hose barb for connecting a flexible hose/tubing or a vacuum pump/filtration pump for vacuum filtration.. Unlike some smaller, Erlenmeyer Flask varieties, this product is a larger format, carboy-style filtering flask.