Globe Scientific's dual position cap is produced from low density polyethylene (LDPE) and is ribbed for easy handling. The cap is specially designed to provide aerobic or anaerobic storage of culture samples. When snapped into the tube, the cap provides a leak-resistant seal. These caps fit Test Tube 12x75 tubes and 13mm tops. Sold by the bag of 1000 each
Note: Leave the cap in the loose position for aerobic work and in the sealed position for anaerobic cultures.
