Vacuum desicator is provided with a transparent polycarbonate bottom that makes it more robust and provides excellent view of the desicator. . It is autoclavable for added convenience. The Desiccator is capable of holding a vacuum of up to 740mm of Hg for 24 hours. Equipped with a polypropylene stopcock featuring a self-lubricating PTFE plug, the plug functions in three ways: creating vacuum, shutting off, and releasing vacuum. The Desiccator includes an internal flange with a thickness of 0.125" and a 1" diameter middle hole, along with numerous 0.125" diameter holes, perfect for securely holding an o-ring.