• Top section of the vacuum desiccator is clear, molded polycarbonate which permits viewing from any angle. Bottom section is made of polypropylene. • Polypropylene stopcock with a Teflon TFE plug and 2 mm bore, located at the top center, allows gentle air entrance when releasing vacuum. • A peripheral flange around the bottom fits into two snap locks sealing the two halves against a Buna-N O-ring. • Vacuum retention rating is 740 mm Hg. • Interior dimensions (Dia. x H): 102 x 59 mm. • Base: 175 mm diameter.