The 47mm filtration apparatus with fritted glass support is recommended for routine filtration analysis of corrosive liquids and the removal of particulates from HPLC solvents. The ground joint connection eliminates the phthalate contamination that can occur when using silicone or neoprene stoppers. The support base has a coarse porosity glass frit and an integral vacuum connection that is located above the drip tip to prevent contamination of the vacuum line with filtrate droplets. Each apparatus is supplied with funnel, anodized aluminum clamp, 47 mm fritted glass support base and filtration flask. Joints are Standard Taper 40/35.