Thermo Scientific Nalgene Sterile Erlenmeyer Flasks. Sterile disposable flasks reduce the chance for cross contamination. Ideal for shaker and suspensioncell culture, media preparation or storage. Molded-in graduations. High-density polyethylene closure has a hydrophobic 0.2µm PTFE membrane that allows sterile airexchange. Flasks offer a 5-year shelf life, a 10-6SAL, are non-pyrogenic and non-cytotoxic. Individuallypackaged for easy storage and handling. Also available with palin bottom (Cat. No. 4115). Material PETG. Volume 1000ml. Closure 45-430. Bottom Baffled. Vented. Sterile. Case Qty 6.