Strong, easy to handle, light-weight desiccator with lower container made of polypropylene and upper transparent dome of rigid polycarbonate giving a crystal clear view of the desiccant placed inside. This auoclavable desiccator can hold vacuum up to 740mm of Hg for 24 hours without any greasing. Dome provided with a knurled knob at the top for easy handling and polypropylene stop-cock with self lubricating PTFE plug. This stopcock works three ways for vacuum creation, shutting off and vacuum release. Lower container has internal groove on the flange to take a siliconrubber O-ring. Supplied with thick perforated polypropylene plate with a big hole at the center for easy lifting and small holes providing air troughs and support to the dishes. Also allows use of incandescent crucibles with porcelain desiccator plates. A convenient neatly fitted removable pan holds calcium chloride or other drying agents without any risk of corrosion