The said cryo vials have external threading and caps are available in different colours i.e. white, blue, red and yellow. These colour caps does not need any coders and one can purchase any of the required colour in place of coders.
Capacity in ml
Cryo box are stackable & autoclavable can also be stored under temp. of -900C. The Lid is attached to the box by hinges and has locking provision to avoid unwanted opening while in deep freezers. One can accomodate 0.5, 1.5 and 2.0 ml micro tubes & 1 ml and 1.8 ml cryo vials.