Desiccator, Type 5311, PC

Transparent, lightweight, unbreakable, for vacuum or non-vacuum use. With stopcock. Large, stable base. No danger of implosion. Capable of maintaining 0.95bar negative pressure over a 24 hour period. With silicone O-ring, no lubrication required. Suitable for 230mm diameter desiccator discs or plates. Max. height over plate 195mm. Plate not included.
External diameter: 280mm 
Internal diameter: 251mm
Type 5311