Always a bestseller Pyrex® items are manufactured from thermal & chemical resistant Pyrex® borosilicate glass.Heavy walled Pyrex® Büchner filter flasks are ideal for vacuum filtration applications. The side-arm feature consists of a short glass side-arm with a PTFE screw-thread connector for easy and safe attachment of 9mm bore vacuum tubing (B8A89801 - not included).With tooled neck to accept a drilled rubber stopper.Ungraduated with white enamel marking spot.Volume: 100mlHeight: 105mmNeck Internal Diameter: 24mmPack of 5