Pyrex® Round Media Bottles

These heavy duty Corning® Pyrex® graduated, round media bottles can be used for storage as well as mixing and sampling. These round glass media bottles also include a linerless, one-piece autoclavable orange polypropylene plug seal threaded cap and pouring ring. (Pouring ring is not included on the 25mL size.) 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. Material: Corning Borosilicate Glass Code 7740.