Membrane Solutions Sterile Disposable Vacuum Filter Units with 0.22um PES Membrane, 250mL Membrane Solutions Disposable Vacuum Filtration units are very useful in large volume samples separation and purification for tissue culture media, biological fluids and fixation buffers. The unit includes membrane filter, graduated funnel of clear polystyrene with polyethylene neck adapter and polystyrene reservoir bottle with a separate sterile polyethylene cap. Feature 1. High flow rates and throughput. 2. Low protein binding and extractable. 3. Sterilization by gamma irradiation. 4. Sterile graded PES membrane, LRV＞7 for Brevundimonas diminuta, ATCC19146. 5. Non-pyrogen and surfactant-free. 6. Rapid-Flow multi-column membrane support system provides a uniform, consistent separation between touchpoints with the membrane, minimizing gap stress to maintain optimal flow. 7. Light weight with solid structure. 8. Reservoir bottles feature improved grip sides for easy handling, simplify tightening/ loosening and adjustments. 9. Designed wide and easy access bottle mouth for efficiently and stably pour out. 10. Designed hose connector can fit multiplicate hose diameters for vacuum source. Specifications: Material: Polystyrene(PS) Part Number: VFPPES222250 Number of Items: 4 Capacity: 250ml Size: 45mm Bottle Neck Diameter, 250 Capacity Item Shape: Cylindrical Specification Met: certified frustration-free Filter Medium: PES Pore Size(μm): 0.22 Funnel Capacity(ml): 250 Receiver Capacity(ml): 250

Bottle top vacuum filter is designed to fit plastic or glass media bottles with 45mm neck sizes Polyethersulfone (PES) membrane has a 0.22m pore size and 17sq cm area; provides the fastest flow rates and highest throughput(could filter 500ml-1L), lowest protein binding and low extractables, and best filtering of cell culture media Polystyrene filter funnel has a 250mL capacity and a 45mm diameter polyethylene neck adaptor with an angled hose connector that simplifies vacuum line attachment Individually packaged, sterile, and certified nonpyrogenic; designed for filtering and storing cell culture media, biological fluids, and other aqueous solutions