Material (Membrane), Cellulose Acetate ; Pore Size, 0.2 μm ; Sterility, Non-sterile ; For Use With (Application), HPLC, SPE ; Housing Material, Solvent Resistent, 0.22 0.45 um Cellulose Acetate Membrane Filters – Hawach. Cellulose Acetate Membrane Filters, usually called CA membrane filters, are suitable for the filtration of aqueous and