250mL lab bottle, PTFE faced silicone lined red PBT GL45 cap and ETFE pouring ring
PYREX brand media storage bottles with external threads and screw cap. Includes linerless, red PBT (polybutylene terephthalate) cap, PTFE faced silicone liner and ETFE pouring ring to withstand 180 degrees C dry sterilization. Permanent white graduations, marking spots and trace codes.
NOT FOR USE WITH PRESSURE OR VACUUM