These All Glass Filter Holders are made of borosilicate glass with fritted glass filter base. The base design has an integral vacuum connection located above the filtrate drip to prevent contamination of the vacuum line from droplets. It has anodised aluminium spring clamp. The filter size is 47 mm. The effective filtration area is 9.6 cm2. It is used for filtration of HPLC solvents and aqueous mobile phase solutions and buffers. The scaled funnels simplify dosing and analysis.