Product Review

Karter Scientific is a registered trademark in United States of America. To maintain quality control, authorized permission is required in the resale of our products. Cylindrical Test Tube, manufactured from high quality polystyrene. PS Tubes are not autoclavable or dishwasher safe but are chemically resistant and clear like glass. Polystyrene has the properties of glass but at a much lower price point. Since polystyrene is not as hard as glass it will have minor scratches. Plastic Caps fit securely into 40mm OD Tube.