Minisart® Syringe Filter, Surfactant-free Cellulose Acetate (SFCA), Pore Size 0.8 µm, Ethylene Oxide, Female Luer Lock, Male Luer Lock, Pack Size 50 Added to Shopping Cart Minisart ® NML with surfactant-free cellulose acetate (SFCA) is the best choice for all aqueous solutions and oils with a pH of 4 - 8.