Pall AcroPrep Advance 96-well Filter Plates are available in 350 μL, 1 mL and 2 mL well volume formats, and with Pall’s wwPTFE membrane with either 0.2 μm or 0.45 μm pore size. wwPTFE, water wettable polytetrafluroethylene membrane is ideal for aqueous solutions and offers maximum chemical compatibility for aggressive solvents.