The vacuum desiccators are available in a wide range of specifications depending upon their flange diameters. They are designed with a thick perforated polypropylene disc and have a big hole in the centre for easy lifting. The tiny holes in the disc provide air troughs and support to the discs. In case of incandescent crucibles, porcelain discs are recommended. Vacuum desiccators are made of polypropylene or polycarbonate material. features wide rangeexcellent designhigh quality industry leading prices