This 500mL (16oz) AC medium round bottle has a white polypropylene screw cap with a PTFE/foam liner. It is manufactured from Wheaton '800' glass, which meets USP Type III standards. The AC round bottle has a taller and narrower profile than a straight-sided jar. It is ideal for use as a sample bottle, and is also useful for dry powders, soil samples, and specimen storage. Bottle Material: Type III Soda Lime Glass. Bottle Color: Clear. Cap Material: Polypropylene. Cap Color: White. Screw Cap Size: 70-400. Cap Liner Material: PTFE/Foam. Diameter x Height: 76 x 145mm. Capacity: 500mL (16oz). Wheaton #: W217004.