This Costar® Spin-X® centrifuge tube filter has a 0.22µm pore size cellulose acetate (CA) membrane-containing filter unit within a 500µL capacity polypropylene microcentrifuge tube. Cellulose acetate (CA) membrane provides fast flow rates and low protein binding. Ideal for removing bacteria, particles, or cells from liquids, HPLC sample preparation and DNA removal from agarose or acrylamide gels. Sterile and certified nonpyrogenic and DNase-/RNase-free. Maximum relative centrifugal force is 16,000 x g. Sterile. Bulk Packaged. Housing And Cap Material: Polypropylene. Filter Style: Centrifuge. Working Volume: 0.5mL. Funnel Capacity: 0.5mL. Membrane Material: Cellulose Acetate (CA). Membrane Pore Size: 0.22µm. Cap Style: Snap Cap. Cap Color: Natural. Tube Capacity: 2mL. Corning® #: 8160.