The Thermo Scientific Nalgene Economy wide-mouth bottles made of PPCO with a cap are particularly suitable for general use when more robust bottles are not absolutely necessary. These bottles are lighter-weight versions of the Nalgene Lab Quality bottles. Features: Cost-effective and recyclable The transparent construction allows a good overview of the fill level. Closures without an insert ensure high leak-proofness, wrinkle formation, leakage and contamination of the solutions is prevented by the insert >Autoclavable Contains: screw caps made of polypropylene