General description:
The Visidry Drying Attachment was designed for our Visiprep Vacuum Manifold (Cat. No. 57100-U also fits our economical Preppy manifold). The Visidry unit installs in minutes, dries up 12 or up to 24 SPE tubes at one time, and can be used with any inert gas supply. It is also useful for evaporating and concentrating recovered samples. Gas flow to each port can be independently adjusted.
Note: The Visidry drying attachment cannot be used to dry 12mL, 20mL, or 60mL SPE tubes.
http://www.sigmaaldrich.com/catalog/search/ProductDetail/SUPELCO/57100-U