Vacuum desiccator allows air to be evacuated from the jar
Lidded jar is shaped to hold a sample plate sold separately over a desiccant material such as silica gel or activated charcoal
Inner diameter at flange is 251 mm, outer diameter is 280 mm, and height is 329 mm accepts 1 4 to 3 8 vacuum tubing
Polycarbonate is easily worked, resists grease, oil, detergent, and most inorganic acids, and has a very high impact resistance at nearly 30 times that of safety glass