Nalgene Thermo Scientific Filter funnel 250 ml, pore size 0.45 μm membrane 50 mm, 12 pc/PAK

New 75 mm diameter membrane for faster flow. Ideal for biological and pharmaceutical sterile filtration. Filter top and filtrate bottle are graduated. All filtration devices have a quick-release hose adapter with cotton plug. With leak-proof screw cap for filtrate bottle. Sterile / graduation