Glassware system for vacuum filtration using 47mm membranes. This assembly uses a standard taper 40/35 joint to connect the support base to the filtering flask, eliminating the possiblility of phthalate contamination from rubber stoppers. Recommended for filtering corrosive solutions, particulate removal from HPLC solvents, and filtration analysis with solid phase extraction disks. Support base has a sealed-in coarse porosity fritted disc and a vacuum connection located above the drip tip to prevent filtrate from entering the vacuum line. Complete assembly includes a 300mL graduated funnel, aluminum clamp, support base and plastic coated filtering flask.