The Diamond RealSeal™ Difference Medical grade resins to meet demanding requirements Precision molded for consistent wall thickness and smooth surfaces Leakproof, linerless caps for secure closing Value Safety & convenience Wide mouth bottles are perfect for sample collection and facilitate rapid filling and emptying of solids, powders, and viscous liquids. Suitable for autoclaving at 121ºC (inluding cap) Improved chemical resistance and clarity Resistant to most corrosives and suitable for a wide variety of laboratory uses Approved for use from -40 to 121ºC