47 mm Filter Funnels, Glass SolVac® Filter Holder Stainless Steel Forceps Vacuum/Pressure Pumps Ordering Information Part Number Description Pkg Price Qty HPLC Mobile Phase Filtration Membranes, 47 mm 66557 0.2 µm, GH Polypro (PP) membrane 100/pkg NA 0 66548 0.45 µm, GH Polypro (PP) membrane 100/pkg NA 0 66143 0.2 µm, TF (PTFE) membrane 100