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This Corning tube top filter system is designed for the filtration of cell culture media, biological fluids, and other aqueous solutions. The system consists of a 150mL polystyrene filter funnel with a 0.22µm pore 13.6sq cm cellulose acetate membrane, a 50mL polypropylene receiver centrifuge tube, and a polyethylene neck adaptor and hose connector. The system minimizes unnecessary transfers by filtering directly into the 50mL centrifuge tube (includes two centrifuge tube stands with each case). The cellulose acetate (CA) membrane provides fast flow rates and low protein binding, and is good for filtering cell culture media. The polypropylene centrifuge tube is supplied with an individually wrapped cap for storage. Expiration date appears on the filter funnel and shipping boxes. Expiration date of the membrane is three years from the time the product is manufactured. Graduated. Individually Wrapped. Sterile. Certified Nonpyrogenic. Funnel Filter Material: Polystyrene. Filter Style: Vacuum Tube Top. Funnel Capacity: 150mL. Membrane Material: Cellulose Acetate (CA). Membrane Pore Size: 0.22µm. Membrane Dimensions: 42 x 42mm. Membrane Area: 13.6sq cm. Color Coded Adapter: Orange. Cap Style: Plug Seal. Cap Material: High Density Polyethylene. Cap Color: Orange. Tube Capacity: 50mL. Neck Diameter: 45mm. Corning #: 430320.