Corning Pyrex Low Actinic 50 ml Round Media Storage Bottles, With Gl32 Screw Cap

These heavy duty 50 mL PYREX round bottles are manufactured from low actinic glass for use when storing or transporting light sensitive materials. They include a linerless, one-piece autoclavable orange polypropylene plug seal GL32 threaded cap and a drip-free pouring ring. Optional red PBT caps and red ETFE pouring rings are available for dry heat sterilization (180°C). Bottles have permanent white enamel graduations and marking spots. Caution: DO NOT tighten caps immediately after autoclaving as the vacuum resulting from cooling can cause breakage.