Description_x000D_ General description_x000D_ • Clear PC cover with blue bottom_x000D_ • Vacuum connection on body has PTFE stopcock, accepts 1/4 in. I.D. tubing._x000D_ • Max clearance above plate: 143 mm_x000D_ Nalgene vacuum desiccators have a transparent polycarbonate (PC) cover and polypropylene (PP) base which will not shatter or implode at full vacuum when used according to instructions packed with the product. The desiccator body is impervious to all solid desiccants, including acids and alkalies. Do not use concentrated acids as desiccants._x000D_ Straight-bore design eliminates stopcock leakage. No gaskets are necessary, and no need to draw a vacuum to make cover airtight - only grease is needed. Recessed rim on cover keeps grease off bench-top when cover is set down. Desiccator takes any standard 230 mm desiccator plate such as Z360422. The plate for the large size is sold separately._x000D_ Legal Information_x000D_ Nalgene is a registered trademark of Thermo Fisher Scientific or its subsidiaries