250mm polycarbonate cover, blue polypropylene body and stopcock. Will not shatter or implode at full vacuum when used according to instructions included. The body is impervious to all usual desiccants including acids and alkalies BUT do not use concentrated acids. No gasket necessary, 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. Takes any standard 230mm desiccator plate.

• Two models available
• 5309 is autoclavable
• 5310 comes with Teflon stopcock which may be used with (1)/4 inch I.D. vacuum tubing. Not autoclavable.