This tank liner is specifically designed for Nalgene庐cylindrical tanks. The open bag design with a flat bottom enhances mixing. Flexible liner offers cost-effective single-use biopharmaceutical and diagnostic reagent fluid processing when using rigid plastic tanks. Coex polyethylene film is free of animal-derived components. Non-pyrogenic non-cytotoxic food grade film complies with USP VI. Non-Sterile. Gamma Irradiated 20 - 40kGy. Material: coex polyethylene film.